W681308 XXXX PRODUCT DESCRIPTION W681308 USB AUDIO CONTROLLER Data Sheet Revision 1.
W681308 XXXX PRODUCT DESCRIPTION TABLE OF CONTENT 1. GENERAL DESCRIPTION ............................................................................................................................................... 6 2. FEATURES....................................................................................................................................................................... 6 3. PIN CONFIGURATION......................................................................................
W681308 XXXX PRODUCT DESCRIPTION 8.6.3 Watchdog Timer ................................................................................................................................................ 25 8.7 SERIAL PORT (UART)............................................................................................................................................... 28 8.8 OTP ROM ...........................................................................................................................
W681308 XXXX PRODUCT DESCRIPTION 15.1 16. OVERVIEW ............................................................................................................................................................... 49 ICE FUNCTION BY JTAG STD. IEEE 1149.1............................................................................................................ 49 16.1 OVERVIEW ...................................................................................................................................
W681308 XXXX PRODUCT DESCRIPTION LIST OF TABLES Table 1 Pin Description .......................................................................................................................................................... 10 Table 2 W681308 MCU SFR location..................................................................................................................................... 22 Table 3 Interrupt Priority Structure............................................................................
W681308 XXXX PRODUCT DESCRIPTION 1. General Description W681308 USB Audio Controller from Nuvoton integrates fast 8051 Microcontroller Unit (MCU), Universal Serial Bus (USB) 2.
W681308 XXXX PRODUCT DESCRIPTION Number pad control User programmable keys Keypad scanning LCD Module interface control UART Programmable UART port for serial data application PCM Interface Master linear PCM interface to external PCM device such as Nuvoton’s ProX CODEC/SLIC SPI interface Works in master mode to control Liquid Crystal Display (LCD) Module or other SPI slave devices Support Winbond serial flash device with SPI interface W2S 2 Wire interface Support 2 wire interface for
W681308 XXXX PRODUCT DESCRIPTION JTAG GPIO15/KX0 GPIO16/KX1 GPIO17/KX2 GPIO18/KX3 GPIO19/KX4 GPIO20/KY0 GPIO21/KY1 GPIO22/KY2 GPIO23/KY3 GPIO24/KY4 REGL 47 46 45 44 43 42 41 40 39 38 37 Pin Configuration 48 3.
W681308 XXXX PRODUCT DESCRIPTION 4. Pin Description Please refer to Design Guide for product design details.
W681308 XXXX PRODUCT DESCRIPTION Pin Name Pin No State in Reset TDO/GPIO 2 23 Pull-L Functionality Pin Type Driver Strength JTAG Data Output / GPIO 2 D I/O 2 mA A P — VPP 24 Reset signal for digital core. Tie this pin to 6.
W681308 XXXX PRODUCT DESCRIPTION 5. Block Diagram Figure 2 W681308 Function Block Diagram There are 4 major function block groups in the USB Audio Controller: Turbo 8051 MCU, registers, OTP/RAM memory and peripheral ports 16-bit audio quality CODEC with AEC/AGC USB 2.0 FS interface with SIE, Full Speed PHY and 6 end points SPI / UART / I2C / PCM / I2S and GPIO interfaces. 11 Rev1.
W681308 XXXX PRODUCT DESCRIPTION 6. Memory Map 6.1 Program Memory map Memory is mapped into program memory and data memory. Program memory is mapped from 0x0000 to 0x1FFF (8 KB), it is used by internal OTP. 6.
W681308 XXXX PRODUCT DESCRIPTION 7. Registers The registers are mapped by function. 7.1 MCU Clock Rate Select Register Address 0x1440 7.
W681308 XXXX PRODUCT DESCRIPTION 7.4 Gain Stage and Mixer Control Registers Address Name Mode Value At Reset Function Enable/Disable Gain Stage for Side tone Gain, CODEC to AEC Gain, AEC to CODEC Gain, AEC to Mixer Gain, Mixer to AEC Gain and USB in/USB out Gain. Select Mixer mode for USB, CODEC and PCM.
W681308 XXXX PRODUCT DESCRIPTION 7.
W681308 XXXX PRODUCT DESCRIPTION 7.9 Ring Tone (PWM) Control Registers Address Name Mode Value At Reset Function 0x14C0 PWM Clock R/W 0x00 Enable/Disable PWM Operation Clock 0x14C2 PWM Tone1 Control R/W 0x00 Set Tone 1 Volume 0x14C3 PWM Tone1 Frequency R/W 0x00 Set Tone 1 Frequency 0x14C4 PWM Tone2 Control R/W 0x00 Set Tone 2 Volume 0x14C5 PWM Tone2 Frequency R/W 0x00 Set Tone 2 Frequency 7.
W681308 XXXX PRODUCT DESCRIPTION Mode Value At Reset Function R/W 0x1998 Set deviation power threshold of Voice Detect R/W 0x1998 Set power threshold for long term power estimation of Voice Detect R/W 0x0BA8 Set Low power threshold for short term power estimation of Voice Detect R/W 0x1038 Set high power threshold for short term power estimation of Voice Detect R/W 0x0000 Set average power threshold for short term power estimation of Voice Detect Power Cut Off Control R/W 0x1998 Set ze
W681308 XXXX PRODUCT DESCRIPTION Address Name Mode Value At Reset Function R/W 0x03E8 Set threshold level for active noise suppressor R 0x0000 R 0x0000 R 0x0000 R 0x0000 R 0x0000 R 0x0000 0x1640~ 0x1641 0x1642~ 0x1643 0x1644~ 0x1645 0x1648~ 0x1649 0x164A~0x 164B 0x164C~0x 164D Noise Suppressor Active Power Threshold Short Term Power voice detector Long Term Power Voice Detector Voice Detector Power Deviation Short Term Power Double Talk Long Term Power Double Talk Double Talk Power Dev
W681308 XXXX PRODUCT DESCRIPTION Address Name Mode Value At Reset 0x1807 ~ 0x1809 USB Interrupt Register C R/W 0x00 Set USB Audio Class interrupt enable, status and clear. 0x1810 Endpoint 0 – Control In/Out R/W 0x00 Set USB Control in/out Endpoint control Function 0x1811 Control In Data R/W 0x00 Control in Endpoint Data. Internal FIFO has 1 byte for Control In transmission.
W681308 XXXX PRODUCT DESCRIPTION Address Name Mode Value At Reset 0x1851 Bulk Out FIFO Length R 0x00 Indicate Bulk Out Endpoint receiving data FIFO length. 0x1852 Bulk Out Data R 0x00 Bulk Out Endpoint receiving data FIFO.
W681308 XXXX PRODUCT DESCRIPTION 8. 8.1 Microcontroller Features 8.2 8.2.
W681308 XXXX PRODUCT DESCRIPTION Special Function Registers (SFR) 8.2.3 Address Byte 0 F8 EIP F0 B E8 EIE E0 ACC D8 WDCON D0 PSW C8 T2CON Byte 1 Byte 2 T2MOD RCAP2L Byte 3 Byte 4 Byte 5 RCAP2H TL2 TH2 PMR STATUS C0 Byte 6 Byte 7 TA B8 IP SADEN B0 P3 A8 IE SADDR A0 P2 XRAMAH 98 SCON SBUF 90 P1 88 TCON TMOD TL0 TL1 TH0 TH1 CKCON 80 P0 SP DPL DPH DPL1 DPH1 DPS PCON Table 2 W681308 MCU SFR location 8.
W681308 XXXX PRODUCT DESCRIPTION Activation of reset The Idle mode can also be exited by activating the reset. The device can be put into reset either by applying a high on the external RST pin, a Power on reset condition or a Watchdog timer reset. The external reset pin has to be held high for at least two machine cycles i.e. 8 clock periods to be recognized as a valid reset. In the reset condition the program counter is reset to 0000h and all the SFRs are set to the reset condition.
W681308 XXXX PRODUCT DESCRIPTION 8.6 Programming Timers and Counters The MCU of W681308 has three 16-bit programmable timers/counters and one programmable Watchdog timer. The Watchdog timer is operationally quite different from the other three timers. 8.6.1 Timers/Counters 0 and 1 Timer 0 (TM0) and Timer 1 (TM1) are 16-bit Timer/Counters and are nearly identical. Each of these Timers/Counters has two 8 bit registers which form the 16 bit counting register.
W681308 XXXX PRODUCT DESCRIPTION 8.6.2 Timer/Counter 2 Timer/Counter 2 is a 16 bit up/down counter which is configured by the T2MOD register and controlled by the T2CON register. Timer/Counter 2 is equipped with a capture/reload capability. As with the Timer 0 and Timer 1 counters, they provide wide selection and control of the clock and selection of the operating modes. The clock source for Timer/ Counter 2 can be selected for the crystal oscillator, which is divided by 12 or 4 ( C/T2 = 0).
W681308 XXXX PRODUCT DESCRIPTION The main use of the Watchdog timer is as a system monitor. This is important in real-time control applications. In case of some power glitches or electro-magnetic interference, the processor may begin to execute errant code. If this is left unchecked the entire system may crash. Using the watchdog timer interrupt during software development will allow the user to select ideal watchdog reset locations. The code is first written without the watchdog interrupt or reset.
W681308 XXXX PRODUCT DESCRIPTION Control Bit Name Function EWT Enable Watchdog timer Reset Setting this bit will enable the Watchdog timer Reset function. RWT Reset Watchdog Timer This bit helps in putting the watchdog timer into a know state. It also helps in resetting the watchdog timer before a time-out occurs. Failing to set the EWT before time-out will cause an interrupt, if EWDI (EIE.4) is set, and 512 clocks after that a watchdog timer reset will be generated if EWT is set.
W681308 XXXX PRODUCT DESCRIPTION 8.7 Serial Port (UART) The MCU serial port is a full-duplex port, and the MCU provides additional features, such as Frame Error Detection and Automatic Address Recognition. The serial port is capable of synchronous and asynchronous communication. In synchronous mode, the MCU generates the clock and operates in half-duplex mode. In asynchronous mode, the serial port can simultaneously transmit and receive data.
W681308 XXXX PRODUCT DESCRIPTION 9. 9.1 9.1.1 Clock Control and Reset Clock Control Overview Each register in the 12/24/48 MHz USB Audio Controller is reset synchronously. The Reset and Clock Control function ensures that the system reset signal is correctly generated. The system reset signal is also used to ensure that bi-directional signals are all set to input during initialization. 9.1.
W681308 XXXX PRODUCT DESCRIPTION 9.1.3 Control Register MCU Rate Select Address Access Mode Value At Reset 0x1440 R/W 0x00 Bit 7 Bit 6 MCU Rate Select [7:6] MCU Rate Select [7:6] Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reserved Reserved Reserved Reserved Reserved Reserved MCU Clock Rate select (default = 00 ) 00 = 12 MHz , Use for CODEC/AEC/USB Controller 01 = 24 MHz 10 = 48 MHz , Use for MCU/USB PHY/Peripherals 11 = Reserved 30 Rev1.
W681308 XXXX PRODUCT DESCRIPTION 10. 10.1 Interrupt Control Overview The W681308 generates internal events, these interrupt events are triggered by the interrupt control logic. The MCU supports two priority levels of interrupts with 6 interrupt sources. 10.
W681308 XXXX PRODUCT DESCRIPTION 10.3 Interrupt Control Registers Address Access Mode Value At Reset 0x1441 ~ 0x1443 R/W 0x00 Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 0x1441 USB Interrupt W2S Interrupt SPI Interrupt GPIO Interrupt KeypadWakeup Interrupt Bit 2 Bit 1 NFS Interrupt Reserved Bit 0 Reserved NOTE: The NFS interrupt occurs for every 8 CODEC frames.
W681308 XXXX PRODUCT DESCRIPTION 11. Interface Logic The W681308 Interface logic consists of: Keypad Scanner Interface Input/Output GPIO Ports LCD/LCM interface UART interface JTAG Interface PCM Interface SPI for Serial Data Flash W2S Interface Keypad scanner, GPIO, LCD/LCM and UART interfaces are covered in this section. Software Keypad Scanner 11.
W681308 XXXX PRODUCT DESCRIPTION 11.2 GPIO s W681308 has 25 GPIO pins that are mainly used for keypad scanner, LCM controller, SPI, W2S, PCM interface, UART port, JTAG interface and GPIO s. NOTE: The pin function for LED, CS, SCLK, SDI, SDO and CSL will act as different functions according to the setting of LCD_ENB (0x145E), SPI_ENB (0x14A0), RDY_ENB(0x14AB) and W2S_ENB(0x14B0).
W681308 XXXX PRODUCT DESCRIPTION 11.
W681308 XXXX PRODUCT DESCRIPTION 12. 12.1 PCM Interface , Gain Stage and Mixer PCM Interface The PCM module is a 16-bit parallel/serial data transfer interface. It transfers the 16 bits data from Gain-Stage/Mixer to single bit Output, and transfers the one bit signal data of Input pin to 16 bits data buffer to the Gain-Stage / Mixer. In normal operation, the FS and BCLK are generated from the analog PLL module.
W681308 XXXX PRODUCT DESCRIPTION 12.3 Mixer The mixer provides flexible connections among CODEC block, PCM interface and USB block. We will describe each connection case of mixer modes and how to configure them below. 12.4 Connection Case Example Figure 6 Mixer Connection Case Examples Case 0: Link CODEC and USB Case 1: Link CODEC and PCM 37 Rev1.
W681308 XXXX PRODUCT DESCRIPTION Case 2: Link PCM and USB Case 3: Link All 12.5 38 Rev1.
W681308 XXXX PRODUCT DESCRIPTION Mixer Case Examples with Register Setting Figure 7 Mixer Examples with Registers Setting Case 0: Default Register Setting: 0x1460 = 0x80 (Enable Gain Stage, Link CODEC_USB) 0x1470 = 0x00 (Disable PCM) Case 1: Record Conversation Register Setting: 0x1460 = 0x83 (Enable Gain Stage, Link All) 0x1470 = 0x80 (Enable PCM) 0x1474 = 0x02 (Mute PCM_RX) 39 Rev1.
W681308 XXXX PRODUCT DESCRIPTION Case 2: Record Greeting Register Setting: 0x1460 = 0x80 (Enable Gain Stage, Link CODEC_USB) 0x1470 = 0x80 (Enable PCM) 0x1474 = 0x02 (Mute PCM_RX) Case 3: Record Message Register Setting: 0x1460 = 0xF0 (Enable Gain Stage, Link CODEC_USB, Record_USB) 0x1470 = 0x80 (Enable PCM) 0x1474 = 0x02 (Mute PCM_RX) 40 Rev1.
W681308 XXXX PRODUCT DESCRIPTION Case 4: Play conversation 1 Register Setting: 0x1460 = 0x83 (Enable Gain Stage, Link All) 0x1470 = 0x80 (Enable PCM) 0x1474 = 0x04 (Mute PCM_TX) Case 5: Play Conversation 2 Register Setting: 0x1460 = 0x83 0x1470 = 0x80 0x1474 = 0x04 0x1464 = 0x40 0x1467 = 0x40 (Enable Gain Stage, Link All) (Enable PCM) (Mute PCM_TX) (Mute CODEC A/D IN) (Mute USB ISO OUT) 41 Rev1.
W681308 XXXX PRODUCT DESCRIPTION Case 6: Pro-X FXS Register Setting: 0x1460 = 0x81 (Enable Gain Stage, Link PCM_USB) 0x1470 = 0x80 (Enable PCM) 0x1465 = 0x40 (Mute CODEC D/A OUT) 12.6 I2S Register Setting Example The following example will generate I2S interface format from the W681308 PCM interface. I2S for 48KHz Sampling Rate(SR) with 16bits LPCM : 0x1470 = 85 101 = BCLK Rate Select. SR x 32 bits = 48K x 32 = 1.
W681308 XXXX PRODUCT DESCRIPTION 13. 13.1 Audio Codec Interface Overview The audio CODEC interface allows the USB Audio Controller Device to be connected to one or more of the following: 16 bit internal linear PCM CODEC and Echo Cancellation block. 8/16/48 KHz CODEC sampling rate An I2S interface to and from the on chip linear CODEC.
W681308 XXXX PRODUCT DESCRIPTION The signal from the digital receive input is filtered through the acoustic echo cancellation filter and subtracted from the high pass filter output. The acoustic echo cancellation is only active in speaker phone operation with 8 kHz sampling. The result is then passed to the AGC with programmable time, release time and enable signal. The output of the AGC can be passed either to the PCM interface, the USB/MCU or both (recording a conversation).
W681308 XXXX PRODUCT DESCRIPTION MIC_BIAS[2:0] 0x1488 W681308 Voltage Gain Mode MIC_RES[7:4] 0x1488 0x1489 MIC_MODE=‘000’ MCP + Electret Microphone To ADC MIC_GAIN[7:4] 0x1489 RINT1 RINT2 MIC_GAIN[7:4] 0x1489 MCO 250 Ohm VADC VMCP RGND Rm 0 Ohm Or ferrite RINT 1 RINT 2 = 1+ '000' Figure 9 Microphone Voltage Gain Mode Current Gain Mode For higher gain configurations, the current gain mode can be used as in Figure 10 below.
W681308 XXXX PRODUCT DESCRIPTION The current gain mode uses the same programmable microphone bias voltage and resistor as the voltage gain mode. The gain is set by either the internal gain resistor or an external resistor, depending on the MIC_MODE setting. Since the current gain mode is using a single resistor, the gain accuracy is limited. However, large gain can be achieved. Note that a 250Ohm ESD protection resistor is connected to the MCO pin.
W681308 XXXX PRODUCT DESCRIPTION 14. 14.1 Serial Peripheral Interface Overview W681308 built in a serial peripheral interface (SPI) port which is a 4-pin (SCLK, CS, SDI, SDO) SPI Interface. This SPI interface makes W681308 an easy to control 4-pin SPI device including SPI data flash, SPI LCM, Nuvoton Pro-X SLIC CODEC etc. This device has various clock speed and data format by setting relative control registers. The SPI module can be operated at clock rates of up to MCU clock rate.
W681308 XXXX PRODUCT DESCRIPTION After finished shift out the command bytes, the FSM will change to DATA state if the Data_enb ( 0x14A1[4]) is true, or run back to IDLE state if the Data_enb is false. Data When FSM goes into Data state, the control logic start to shift out write data to external SPI device if SPI_RD (0x14A1[3]) is false, or shift in read data from external SPI device if SPI_RD (0x14A1[3]) is true.
W681308 XXXX PRODUCT DESCRIPTION 15. 15.1 Nuvoton 2-Wire Serial Bus Overview Nuvoton 2-wire serial bus (W2S) is a simple bi-directional 2-wire bus for efficient inter-IC control. This design is for W2S master use only, and governed by the MCU. The W2S is used to both read/write EEPROM and to control various device included I2C interface. The W2S controller is equipped with 35 bytes FIFO performing formatting and de-formatting.
W681308 XXXX PRODUCT DESCRIPTION 16.4 Reset Behavior TB51 will start to execute internal code after power on reset. If host JTAG ICE connects with TB51, the host ICE can send command to control the TB51. Reset type Power On Reset Reset by RESET pin or WDT RESET (including set Reset out and Reset in SC0) nTRST Low Functional description 1. Reset MCU 2. Reset JTAG. TAP controller will stay in Test-Logic Reset State. 3. Execution starts from address 0000 after reset. 1. Reset Chip. 2. Do not reset JTAG.
W681308 XXXX PRODUCT DESCRIPTION 18. FULL/HALF DUPLEX ACOUSTIC ECHO CANCELLATION(AEC) The AEC unit removes the echo signal caused by the speaker and room reflections. 18.1 Function Control Registers Figure 14 illustrates the block diagram of the Full/Half Acoustics Echo Cancellation Figure 14 Signal flow through Acoustic Echo Cancellation in the speech processor 51 Rev1.
W681308 XXXX PRODUCT DESCRIPTION 19. USB Device Controller And Transceiver 19.1 Overview The W681308 includes a full function USB 2.0 Full Speed controller. It supports USB 2.0 FS standard specification and standard USB audio device class and HID device class in Microsoft Windows environment. The USB core embeds one programmable 512x8 Bit RAM to store descriptor. In the setting, the USB core includes five interfaces and 6 endpoints to handle above applications. 19.
W681308 XXXX PRODUCT DESCRIPTION module is a bridge to communicate SIE and all transfer type modules. Register Control module is for handle MCU read/write and data signals of W681308 USB registers. Gain Stage residing out off USB module is required for adjusts gain of PCM data in audio volume control application. USB test module connects many internal signals to test pins for help monitor them from outside. The features of USB interface are: USB Specification version 2.
W681308 XXXX PRODUCT DESCRIPTION 19.2.2 Descriptor RAM The referenced descriptors are stored in the 512x8 Bit RAM, programmed by MCU. The address mapping and bank definition of this RAM are shown in 18-2.
W681308 XXXX PRODUCT DESCRIPTION 20. Electrical Characteristics 20.1 Absolute Maximum Ratings CONDITION VALUE UNIT 150 0 C -65 to +150 0 C Lead temperature (soldering – 10 seconds) 300 0 C LQFP-48 Thermal Resistance, typical 76 C/W (VSS - 0.3 ) to (VDD + 0.3 ) V Input current applied to any digital input pin +/- 10 mA ESD (Human Body Model) 2000 V VDD - VSS -0.5 to +3.63 V VDDL - VSS -0.5 to + 1.98 V 0.
W681308 XXXX PRODUCT DESCRIPTION 20.3 DC Characteristics SYMBOL PARAMETER MIN TYP MAX UNIT VIL Input Low Voltage -0.3 0.8 V VIH Input High Voltage 2 3.6 V VT Threshold point 1.32 1.41 1.49 V VT+ Schmitt trigger. Low to High threshold point 1.49 1.54 1.58 V VT- Schmitt trigger. high to low threshold point 1.24 1.29 1.34 V Input leakage current @VI=3.3V or 0V ± 10 µA IOZ Tri-state output leakage current @VO=3.
W681308 XXXX PRODUCT DESCRIPTION 20.5 Analog Distortion and Noise Parameters All ADC tests using Auxiliary input mode @ 0dB gain 20.5.1 8kHz sampling AVDD=3.13V – 3.
W681308 XXXX PRODUCT DESCRIPTION 48kHz sampling 20.5.3 AVDD=3.13V – 3.
W681308 XXXX PRODUCT DESCRIPTION 20.7 USB PHY Electronic Characteristics ( 25°C, DVDD= 3.3V, VDDL =1.8V) PARAMETER SYMBOL DC Supply Voltage for USB Output Stage MIN. TYP. MAX. UNIT VDD_USB 3.1 3.3 3.5 V USB_DP USB_DN 0 3.5 V Input High VIH 2.0 Input Low VIL Differential Input Sensitivity VDI 0.2 Differential Common-mode Range VCM 0.8 Single-end Receiver threshold VSE 0.8 Output Low VOL Output High VOH 2.8 Output signal cross Voltage VCRV 1.3 Pull-up Resistor RUP 1.
W681308 XXXX PRODUCT DESCRIPTION 20.8 USB PLL Electronic Characteristics PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. 3.13 3.3 3.47 UNIT Operation Voltage VPLL Input Clock Frequency Range FIN 12 MHz PLL Output Frequency FOUT 48 MHz VCO Frequency FVCO Ouput Duty Cycle V --- 48 --- MHz 46 56 66 % PLL Short-Term Peak To Peak Output Jitter TJITTER 7 ps PLL Lock In Time TREADY 25 us 60 Rev1.
W681308 XXXX PRODUCT DESCRIPTION 21. Typical Application Reference Circuit S1 1 S2 2 S3 3 S4 Mode S5 HangUp S6 4 S7 5 S8 6 S9 Up S10 Down S11 7 S12 8 S13 9 S14 Skype S15 Dial S16 * S17 0 S18 # S19 Left S20 Right USB_5V S22 User S23 Melody S24 Up1 S25 Down1 R1 R2 R3 1M 100K 60K 1uF/10V 2 S21 + C1 PUSHBUTTON Mute Q1 MMBT3906 1 DGND 3 PUSHBUTTON R4 Q2 PZT2222A VDD_3.
W681308 XXXX PRODUCT DESCRIPTION 22. Package Dimensions W681308DG is in 48 pin Low-profile Quad Flat Package (LQFP). Symbol A A1 A2 b c D E e HD HE L L1 Y θ min 0.002 0.053 0.005 0.004 0.272 0.272 0.014 0.350 0.350 0.018 0’ In inch nom -0.063 0.004 0.055 0.008 0.005 0.276 0.276 0.020 0.354 0.354 0.024 - max 0.006 0.057 0.010 0.008 0.280 0.280 0.025 0.358 0.358 0.030 0.039 0.004 7’ 62 min 0.05 1.35 0.15 0.10 6.90 6.90 0.35 8.90 8.90 0.45 0’ In mm nom 1.60 0.10 1.40 0.20 0.15 7.00 7.00 0.50 9.00 9.
W681308 XXXX PRODUCT DESCRIPTION 23. Ordering Information Nuvoton Part Number Description W681308_ _ Package Material: G = Pb-free Package Product Family Package Type: D = 48-Lead Quad Flat Pack Package (LQFP) When ordering W681308series devices, please refer to the following part numbers: Part Number Temp Range (oC) Package Package Material W681308DG -40 to 85 48-LQFP Pb-Free 63 Rev1.
W681308 XXXX PRODUCT DESCRIPTION 24. Revision History VERSION DATE PAGE DESCRIPTION V0 9 July, 2007 V1.0 August, 2007 Update Electrical Characteristics V1.1 March, 2008 Update Speaker / Earphone attenuation switch V1.
