ISD1800 SERIES ISD1800 SERIES SINGLE-CHIP, SINGLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE 6- TO 16-SECOND DURATION -1- Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES 1. GENERAL DESCRIPTION ............................................................................................................... 3 2. FEATURES ....................................................................................................................................... 3 3. BLOCK DIAGRAM ............................................................................................................................ 4 4. PIN CONFIGURATION ............................................
ISD1800 SERIES 1. GENERAL DESCRIPTION ® Nuvoton’s ISD1800 ChipCorder provides high-quality, single chip, single-message, record/playback solution with user-selectable durations of 6 to 16 seconds. The CMOS devices include an on-chip oscillator (with external control), microphone preamplifier, automatic gain control, anti-aliasing filter, multilevel storage array, smoothing filter, and speaker amplifier.
ISD1800 SERIES 3. BLOCK DIAGRAM XCLK ROSC Internal Clock Timing Sampling Clock Active Antialiasing Filter MIC REF Decoders MIC Analog Transceivers AGC Amp Automatic Gain Control (AGC) AGC VSSA VSSD VCCD Active Smoothing Filter Amp SP - Switch Power Conditioning VCCA SP + Nonvolatile Multilevel Storage Array Device Control FT REC PLAYE PLAYL RECLED -4- Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES 4. PIN CONFIGURATION VSSD 1 28 RECLED REC 2 27 VCCD PLAYE 3 26 XCLK PLAYL 4 25 FT NC 5 24 NC NC 6 23 NC NC 7 22 NC NC 8 21 NC NC 9 20 NC MIC 10 19 ROSC NC 11 18 VCCA MIC REF 12 17 SP+ AGC 13 16 VSSA NC 14 15 SP- ISD1800 SOIC/PDIP -5- Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES 5. PIN DESCRIPTION PIN NAME PIN NO. VSSD, VSSA 1, 16 REC 1 I/O FUNCTION Ground Supplies: Similar to VCCA and VCCD, the analog and digital circuits internal to the I1800 device use separate ground buses to minimize noise. These pins should be tied together as close as possible to the device. 2 I Record: The REC input is an active-HIGH record signal. The device records whenever REC is HIGH. This pin must remain HIGH for the duration of the recording.
ISD1800 SERIES PIN NAME PIN NO. I/O FUNCTION MIC 10 I Microphone Input: The microphone input transfers its signals to the on-chip preamplifier. An on-chip Automatic Gain Control (AGC) circuit controls the gain of the preamplifier. An external microphone should be AC coupled to this pin via a series capacitor. The capacitor value, together with an internal 10 KΩ resistance on this pin, determines the low-frequency cutoff for the I1800 passband.
ISD1800 SERIES PIN NAME PIN NO. I/O FUNCTION VCCA, VCCD 18, 27 ROSC 19 I The Resistor Controlled Oscillator input: This enables the user to vary the I1800 device record and playback duration. The resistor connected between the ROSC pin and VSS (R2) determines the sample frequency and the filter upper pass band for the I1800 device. Please refer to the table in Duration Section for duration selection. FT 25 I Feed Through: This mode allows use of the speaker drivers for external signals.
ISD1800 SERIES 6. FUNCTIONAL DESCRIPTION 6.1. DETAILED DESCRIPTION Speech/Sound Quality Nuvoton’s patented ChipCorder® technology provides natural record and playback. The input voice signals are stored directly in nonvolatile cells and are reproduced without the synthetic effect often heard with digital solid-state speech solutions. A complete sample is stored in a single cell, minimizing the memory necessary to store a single message.
ISD1800 SERIES 6.2. FUNCTIONAL DESCRIPTION EXAMPLE The following example operating sequence demonstrates the functionality of the ISD1800 devices. 1. Record a message filling the memory Pulling the REC pin HIGH initiates a record cycle form the beginning of the message space. The device will automatically power down after REC is release LOW. An EOM marker is written at the end of message. If REC is held HIGH, the recording continues until the message space has been filled.
ISD1800 SERIES 8. RECLED operation The RECLED output pin provides an active-LOW signal, which can be used to drive an LED as a “record-in-progress” indicator. It returns to a HIGH state when the REC pin is released LOW or when the recording is completed due to the memory being filled. This pin also pulses LOW to indicate the end of a message has been reached. 9. ROSC operation The duration of the device can be varied by changing the value of R2 (R OSC).
ISD1800 SERIES 7. TIMING DIAGRAMS Operation Power-Down Debounce 84 ms Record Power-Down PLAYL PLAYE REC RECLED MIC INPUT MIC MIC REF INPUT MIC REF FIGURE 1: RECORD MESSAGE UNTIL RECORD GOES LOW Operation Power-Down Debounce 84 ms Record Power-Down PLAYL PLAYE REC RECLED MIC MIC REF INPUT MIC INPUT MIC REF FIGURE 2: RECORD MESSAGE UNTIL ARRAY IS FULL - 12 - Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES Operation Power-Down Debounce 84 ms Play Wink 84 ms Power-Down PLAYL Don't Care No Edges PLAYE Don't Care No Edges REC RECLED MIC MIC REF SP - Open Open 1.2 VOLTS 1.2 VOLTS 1.2 VOLTS 1.2 VOLTS SP + Open Open FIGURE 3: PLAY EDGE (PLAYE) PLAY UNTIL END OF MESSAGE Operation Power-Down Debounce 84 ms Play Wink 84 ms Power-Down PLAYL PLAYE REC RECLED MIC MIC REF Open SP - Open 1.2 VOLTS 1.2 VOLTS 1.2 VOLTS 1.
ISD1800 SERIES Operation Power-Down Debounce 84 ms Wink 84 ms Play Power-Down PLAYL PLAYE REC RECLED MIC MIC REF SP - Open Open 1.2 VOLTS 1.2 VOLTS 1.2 VOLTS 1.2 VOLTS SP + Open Open FIGURE 5: PLAY UNTIL PLAY LEVEL (PLAYL) FALLS Operation Power-Down Debounce 84 ms Wink 84 ms Debounce 84 ms Play PLAYL Play PLAYE RECLED SP + Open SP - Open 1.2 VOLTS 1.2 VOLTS REC 1.2 VOLTS 1.
ISD1800 SERIES Note: Looping playback operation can be performed by connecting the RECLED pin to PLAYE pin. - 15 - Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES 8. ABSOLUTE MAXIMUM RATINGS [1] ABSOLUTE MAXIMUM RATINGS (DIE) CONDITION VALUE Junction temperature 150°C Storage temperature range -65°C to +150°C Voltage applied to any pin (VSS –0.3V) to (VCC +0.3V) VCC – VSS -0.3V to +7.0V ABSOLUTE MAXIMUM RATINGS (PACKAGED PARTS) CONDITION VALUE Junction temperature 150°C Storage temperature range -65°C to +150°C Voltage applied to any pin (VSS –0.3V) to (VCC +0.3V) Lead temperature (Soldering – 10sec) 300°C VCC – VSS -0.3V to +7.
ISD1800 SERIES 8.1. OPERATING CONDITIONS OPERATING CONDITIONS (DIE) CONDITION VALUE Operating temperature range Play voltage (VCC) 0°C to +50°C [1] Ground voltage (VSS) +2.7V to +4.5V [2] 0V Record Supply voltage (VCC) [1] +2.7V to 4.5V OPERATING CONDITIONS (PACKAGED PARTS) CONDITION VALUE Commercial operating temperature range (Case temperature) Play voltage (VCC) [1] Ground voltage (VSS) +2.7V to +4.
ISD1800 SERIES 9. ELECTRICAL CHARACTERISTICS 9.1. DC PARAMETERS PARAMETER SYMBOL MIN [2] [1] TYP [2] MAX 0.8 UNITS Input Low Voltage VIL Input High Voltage VIH Output Low Voltage VOL Output High Voltage VOH VCC Current (Operating) ICC VCC Current (Standby) ISB Input Leakage Current IILPD1 Input Current HIGH IILPD2 30 Input Current HIGH IILPD3 3 Output Load Impedance REXT 8 Preamp Input Resistance RMIC, RMICREF 10 KΩ MIC SP+/- Gain AMSP 40 dB 2.0 CONDITIONS V V 0.
ISD1800 SERIES 9.2. AC PARAMETERS[1] CHARACTERISTIC SYMBOL MIN [ [2] TYP [3] MAX UNITS CONDITIONS 3] Sampling Frequency FS Filter Pass Band FCF Record Duration Playback Duration TREC TPLAY 8 KHz [4] ISD1806 2.2 KHz ISD1810 2.2 3 dB Roll-Off Point [5][6] ROSC = 100 KΩ ISD1806 7.5 sec ROSC = 100KΩ ISD1810 10 ISD1806 7.
ISD1800 SERIES 10. TYPICAL APPLICATION CIRCUIT Typical application circuit (1) VCC ROSC DI REC LED R2 VCCD C2 VCCA 0.1 F R1 1 K VSSD C1 220 F VSSA SP + PLAYL SPEAKER or BUZZER SP - FT ISD1800 R3 PLAYE PLAYL PLAYE C4 0.1 F C5 0.1 F 4.7 K ELECTRET MICROPHONE REC RECORD R6 1 K RECLED C3 0.001 F XCLK MIC MIC REF AGC C6 4.7 F - 20 - R4 4.7 K Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES Alternate application circuit (2) This circuit forces AGC high before recording, and low after recording is started. So when recording device always starts from recording silence and then keeps recording at high signal input level. Thus avoids feeding excessive strong signal to the device at beginning, while maintains high level recording after. This circuit delivers higher playback volume. VCC ROSC DI REC LED R2 VCCD C2 VCCA 0.
ISD1800 SERIES 11. PACKAGE DRAWING AND DIMENSIONS 28-LEAD 300MIL SMALL OUTLINE IC (SOIC) PACKAGE – SAMPLES ONLY 11.1. 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A G C B D E H F INCHES MILLIMETERS Min Nom Max Min Nom Max A 0.701 0.706 0.711 17.81 17.93 18.06 B 0.097 0.101 0.104 2.46 2.56 2.64 C 0.292 0.296 0.299 7.42 7.52 7.59 D 0.005 0.009 0.0115 0.127 0.22 0.29 E 0.014 0.016 0.016 0.35 0.41 0.48 1.27 0 F 0.050 G 0.
ISD1800 SERIES 28-LEAD 600MIL PLASTIC DUAL INLINE PACKAGE (PDIP) – SAMPLES ONLY 11.2. INCHES A MILLIMETERS Min Nom Max Min Nom Max 1.445 1.450 1.455 36.70 36.83 36.96 B1 0.150 B2 0.065 C1 0.600 C2 0.530 0.070 0.540 D 3.81 0.075 1.65 0.625 15.24 0.550 13.46 1.78 15.88 13.72 0.19 D1 0.015 E 0.125 F 0.015 G 0.055 H 1.91 13.97 4.83 0.38 0.135 3.18 0.018 0.022 0.38 0.46 0.56 0.060 0.065 1.40 1.52 1.62 0.100 3.43 2.54 J 0.008 0.010 0.012 0.20 0.
ISD1800 SERIES 11.3. ISD1800 BONDING PHYSICAL LAYOUT (DIE) PLAYL PLAYE REC VSSD RECLED VCCD XCLK FT ISD1800 MIC MIC REF AGC SP - VSSA SP + VCCA ROSC Notes: 1. The backside of die is internally connected to V SS. It MUST NOT be connected to any other potential or damage may occur. 2. Die thickness is subject to change, please contact Nuvoton factory for status and availability. - 24 - Publication Release Date: Jan 15, 2016 Revision 1.
ISD1800 SERIES 12. ORDERING INFORMATION Product Number Descriptor Key ISD18xxx ISD1800 Series Duration: 06 = 6- to 12-second 10 = Package Type: 8- to 16-second X = Die S = Small Outline Integrated Circuit Package (SOIC) P = Plastic Dual Inline Package (PDIP) When ordering, please refer to the following part numbers that are supported in volume for this product series. Consult the local Nuvoton Sales Representative or Distributor for availability information.
ISD1800 SERIES 13. VERSION HISTORY VERSION DATE 0.0 May 2003 0.1 Mar 2005 0.2 Apr 2005 Revise record cycles info in feature and storage sections Update the disclaim section 0.3 Jun 2005 Revise Pout and Vout data in AC Parameters section 0.31 Oct 17, 2008 Nov 7, 2008 0.32 Dec 1, 2008 1.0 Jan 15, 2016 DESCRIPTION Preliminary Specifications. Create one datasheet for both I1806 and I1810 products. Revise duration section with both products. Change filter passband values from 2.6 kHz to 2.
ISD1800 SERIES Nuvoton products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life.
