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Features

• Transparent RF Receiver ICs for 315 MHz (ATA5746) and 433.92 MHz (ATA5745) With

High Receiving Sensitivity

• Fully Integrated PLL With Low Phase Noise VCO, PLL, and Loop Filter

• High FSK/ASK Sensitivity:–105 dBm (ATA5746, FSK, 9.6 Kbits/s, Manchester, BER 10

-3

)

–114 dBm (ATA5746, ASK, 2.4 Kbits/s, Manchester, BER 10

-3

)

–104 dBm (ATA5745, FSK, 9.6 Kbits/s, Manchester, BER 10

-3

)

–113 dBm (ATA5745, ASK, 2.4 Kbits/s, Manchester, BER 10

-3

)

• Supply Current: 6.5 mA in Active Mode (3V, 25°C, ASK Mode)

• Data Rate: 1 Kbit/s to 10 Kbits/s Manchester ASK, 1 Kbit/s to 20 Kbits/s Manchester

FSK With Four Programmable Bit Rate Ranges

• Switching Between Modulation Types ASK/FSK and Different Data Rates Possible in

≤1 ms Typically, Without Hardware Modification on Board to Allow Different Modulation

Schemes for RKE, TPMS

• Low Standby Current: 50 µA at 3V, 25°C

• ASK/FSK Receiver Uses a Low-IF Architecture With High Selectivity, Blocking, and

Low Intermodulation (Typical 3-dB Blocking 68.0 dBC at ±3 MHz/74.0 dBC at

±20.0 MHz, System I1dBCP = –31dBm/System IIP3 = –24dBm)

• Telegram Pause Up to 52 ms Supported in ASK Mode

• Wide Bandwidth AGC to Handle Large Out-of-band Blockers above the System I1dBCP

• 440-kHz IF Frequency With 30-dB Image Rejection and 420-kHz IF Bandwidth to

Support PLL Transmitters With Standard Crystals or SAW-based Transmitters

• RSSI (Received Signal Strength Indicator) With Output Signal Dynamic Range of 65 dB

• Low In-band Sensitivity Change of Typically ±2.0 dB Within ±160-kHz Center

Frequency Change in the Complete Temperature and Supply Voltage Range

• Sophisticated Threshold Control and Quasi-peak Detector Circuit in the Data Slicer

• Fast and Stable XTO Start-up Circuit (> –1.4 kΩ Worst-case Start Impedance)

• Clock Generation for Microcontroller

• ESD Protection at all Pins (±4 kV HBM, ±200V MM, ±500V FCDM)

• Dual Supply Voltage Range: 2.7V to 3.3V or 4.5V to 5.5V

• Temperature Range: –40°C to +105°C

• Small 5 mm × 5 mm QFN24 Package

Applications

• Automotive Keyless Entry and Tire Pressure Monitoring Systems

• Alarm, Telemetering and Energy Metering Systems

Benefits

• Supports Header and Blanking Periods of Protocols Common in RKE and TPM

Systems (Up to 52 ms in ASK Mode)

• All RF Relevant Functions are Integrated. The Single-ended RF Input is Suited for Easy

Adaptation to λ / 4 or Printed-loop Antennas

• Allows a Low-cost Application With Only 8 Passive Components

• Suitable for use in a Receiver for Joint RKE and TPMS

• Optimal Bandwidth Maximizes Sensitivity while Maintaining SAW Transmitter

Compatibility

• Clock Output Provides an External Microcontroller Crystal-precision Time Reference

• Well Suited for Use With PLL Transmitter ATA5756/ATA5757

UHF ASK/FSK

Receiver

ATA5745

ATA5746

Preliminary

4596A–RKE–05/06

Summary of content (43 pages)

PAGE 1
Features • Transparent RF Receiver ICs for 315 MHz (ATA5746) and 433.92 MHz (ATA5745) With High Receiving Sensitivity • Fully Integrated PLL With Low Phase Noise VCO, PLL, and Loop Filter • High FSK/ASK Sensitivity:–105 dBm (ATA5746, FSK, 9.6 Kbits/s, Manchester, BER 10-3) • • • • • • • • • • • • • • • • • –114 dBm (ATA5746, ASK, 2.4 Kbits/s, Manchester, BER 10-3) –104 dBm (ATA5745, FSK, 9.6 Kbits/s, Manchester, BER 10-3) –113 dBm (ATA5745, ASK, 2.4 Kbits/s, Manchester, BER 10-3) Supply Current: 6.
PAGE 2
1. General Description The ATA5745/ATA5746 is a UHF ASK/FSK transparent receiver IC with low power consumption supplied in a small QFN24 package (body 5 mm × 5 mm, pitch 0.65 mm). ATA5745 is used in the 433 MHz to 435 MHz band of operation, and ATA5746 in 313 MHz to 317 MHz.
PAGE 3
ATA5745/ATA5746 [Preliminary] Table 1-1. RX BR0 BR1 ASK_NFSK CDEM Pinning QFN24 DATA_OUT TEST1 2 17 RSSI CLK_OUT 3 16 SENSE_CTRL CLK_OUT_CTRL1 4 15 SENSE CLK_OUT_CTRL0 5 14 LNA_IN ENABLE 6 TEST3 LNA_GND GND 8 VS3V_AVCC 7 13 9 10 11 12 DVCC 24 23 22 21 20 19 18 XTAL2 1 XTAL1 TEST2 VS5V Figure 1-2.
PAGE 4
Figure 1-3. Block Diagram ASK/FSK Demodulator CDEM ASK Power Supply FSK VS3V_AVCC VS5V ASK/FSK Control ASK_NFSK Data Slicer DATA_OUT IF Amp SENSE SENSE_CTRL BR0 IF Filter BR1 GND Standby Logic Control LPF XTO Div.
PAGE 5
ATA5745/ATA5746 [Preliminary] 2. RF Receiver As seen in Figure 1-3 on page 4, the RF receiver consists of a low-noise amplifier (LNA), a local oscillator, and the signal processing part with mixer, IF filter, IF amplifier with analog RSSI, FSK/ASK demodulator, data filter, and data slicer.
PAGE 6
2.2 Input Matching at LNA_IN The measured input impedances as well as the values of a parallel equivalent circuit of these impedances can be seen in Table 2-1. The highest sensitivity is achieved with power matching of these impedances to the source impedance. Table 2-1. Measured Input Impedances of the LNA_IN Pin fRF [MHz] ZIn(RF_IN) [Ω] RIn_p//CIn_p [pF] 315 (72.4 – j298) 1300Ω//1.60 433.92 (55 – j216) 900Ω//1.
PAGE 7
ATA5745/ATA5746 [Preliminary] Table 2-3. Measured Typical Sensitivity FSK, ±38 kHz, Manchester, BER = 10–3 RF Frequency BR_Range_0 1.0 Kbit/s BR_Range_0 2.5 Kbits/s BR_Range_1 5 Kbits/s BR_Range_2 10 Kbits/s BR_Range_3 10 Kbits/s BR_Range_3 20 Kbits/s 315 MHz –108 dBm –108 dBm –107 dBm –105 dBm –104 dBm –104 dBm 433.92 MHz –107 dBm –107 dBm –106 dBm –104 dBm –103 dBm –103 dBm Table 2-4. Measured Typical Sensitivity 100% ASK, Manchester, BER = 10–3 RF Frequency BR_Range_0 1.
PAGE 8
Figure 2-2. Measured Sensitivity (315 MHz, ASK, 2.4 Kbits/s, Manchester) Versus Frequency Offset Input Sensitivity (dBm) Input Sensitivity (dBm) at BER < 1e-3, ATA5746, ASK, 2.4 Kbits/s (Manchester), BR = 0 -118.00 -117.00 -116.00 -115.00 -114.00 -113.00 -112.00 -111.00 -110.00 -109.00 -108.00 -107.00 -106.00 -105.00 -104.00 -103.00 -300 2.7V / -40˚C 3.0V / -40˚C 3.3V / -40˚C 2.7V / 27˚C 3.0V / 27˚C 3.3V / 27˚C 2.7V / 105˚C 3.0V / 105˚C 3.
PAGE 9
ATA5745/ATA5746 [Preliminary] Figure 2-4. Measured Sensitivity (315 MHz, FSK, 2.4 Kbits/s, ±38 kHz, Manchester) Versus Frequency Offset Input Sensitivity (dBm) Input Sensitivity (dBm) at BER < 1e-3, ATA5746, FSK, 2.4 Kbits/s (Manchester), BR0 -112.00 -111.00 -110.00 -109.00 -108.00 -107.00 -106.00 -105.00 -104.00 -103.00 -102.00 -101.00 -100.00 -99.00 -98.00 -300 2.7V / -40˚C 3.0V / -40˚C 3.3V / -40˚C 2.7V / 27˚C 3.0V / 27˚C 3.3V / 27˚C 2.7V / 105˚C 3.0V / 105˚C 3.
PAGE 10
As can be seen in Figure 2-5 on page 9, the supply voltage has almost no influence. The temperature has an influence of about ±1.0 dB, and a frequency offset of ±160 kHz also influences by about ±1 dB. All these influences, combined with the sensitivity of a typical IC (–105 dB), are then within a range of –103.0 dBm and –107.0 dBm over temperature, supply voltage, and frequency offset.
PAGE 11
ATA5745/ATA5746 [Preliminary] 2.5 RX Supply Current Versus Temperature and Supply Voltage Table 2-7 shows the typical supply current of the receiver in Active mode versus supply voltage and temperature with VS = VS3V_AVCC = VS5V. Table 2-6. VS = VS3V_AVCC = VS5V 2.7V 3.0V 3.3V Tamb = –40°C 5.4 mA 5.5 mA 5.6 mA Tamb = 25°C 6.4 mA 6.5 mA 6.6 mA Tamb = 105°C 7.4 mA 7.5 mA 7.6 mA Table 2-7. 2.
PAGE 12
Figure 2-7. Narrow-band 3-dB Blocking Characteristic at 315 MHz 80.0 Blocking Level (dBC) 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 -10.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 Distance from Interfering to Receiving Signal (MHz) Figure 2-8. Wide-band 3-dB Blocking Characteristic at 315 MHz 80.0 Blocking Level (dBC) 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 -10.0 -50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0 30.0 40.0 50.
PAGE 13
ATA5745/ATA5746 [Preliminary] The ATA5745/ATA5746 can also receive FSK and ASK modulated signals if they are much higher than the I1dBCP. It can typically receive useful signals at –10 dBm. This is often referred to as the nonlinear dynamic range (that is, the maximum to minimum receiving signal), and is 95 dB for 10 Kbits/s Manchester (FSK). This value is useful if the transmitter and receiver are very close to each other. 2.
PAGE 14
As can be seen in Figure 2-9 on page 13, for single devices there is a variance over temperature and supply voltage range of ±3 dB. The total variance over production, temperature, and supply voltage range is ±9 dB. 2.9 Frequency Synthesizer The LO generates the carrier frequency for the mixer via a PLL synthesizer. The XTO (crystal oscillator) generates the reference frequency fXTO. The VCO (voltage-controlled oscillator) generates the drive voltage frequency fLO for the mixer.
PAGE 15
ATA5745/ATA5746 [Preliminary] Figure 3-1. Crystal Equivalent Circuit Crystal Equivalent Circuit C0 XTAL Lm CL1 CL2 Cm Rm CL = CL1 × CL2/ (CL1 + CL2) With C m ≤10 fF, C 0 ≥ 1.0 pF, C LN = 9 pF and C L1,2 = 16 pF ±1%, the pulling amounts to P ≤±1 ppm. The C0 of the XTAL has to be lower than CLmin / 2 = 7.9 pF for a Pierce oscillator type in order to not enter the steep region of pulling versus load capacitance where there is risk of an unstable oscillation.
PAGE 16
Lower values of Cm can be used, slightly increasing the start-up time. Lower values of C0 or higher values of Cm (up to 15 fF) can also be used, with only little influence on pulling. Figure 3-2. XTO Block Diagram CL1 XTAL1 CL2 XTAL2 CLK_OUT_CTRL0 CLK_OUT_CTRL1 CLK_OUT & fFXTO Divider /3, /6, /12 XTO_OK Amplitude Detector Divider /16 fDCLK The relationship between fXTO and the fRF is shown in Table 3-1. Table 3-1. Calculation of fRF Frequency [MHz] fXTO [MHz] fRF 433.92 (ATA5745) 13.
PAGE 17
ATA5745/ATA5746 [Preliminary] 3.1 Pin CLK_OUT Pin CLK_OUT is an output to clock a connected microcontroller. The clock is available in Standby and Active modes. The frequency f C L K _ O U T can be adjusted via the pins CLK_OUT_CTRL0 and CLK_OUT_CTRL1, and is calculated as follows: Table 3-2.
PAGE 18
4. Sensitivity Reduction The output voltage of the RSSI amplifier is internally compared to a threshold voltage VTh_red. VTh_red is determined by the value of the external resistor RSense. RSense is connected between the pins SENSE and VS3V_AVCC (see Figure 10-1 on page 28). The output of the comparator is fed into the digital control logic. By this means, it is possible to operate the receiver at a lower sensitivity. If the level on input pin SENSE_CTRL is low, the receiver operates at full sensitivity.
PAGE 19
ATA5745/ATA5746 [Preliminary] Figure 4-1. Reduced Sensitivity Active ENABLE ASK_NFSK SENSE_CTRL RX VTh_red RSSI tStartup_PLL tStartup_Sig_Proc DATA_OUT Figure 4-2.
PAGE 20
5. Power Supply Figure 5-1. Power Supply VS3V_AVCC SW_DVCC IN VS5V V_REG 3.0V typ. OUT DVCC EN RX The supply voltage range of the ATA5745/ATA5746 is 2.7V to 3.3V or 4.5V to 5.5V. Pin VS3V_AVCC is the supply voltage input for the range 2.7V to 3.3V, and is used in battery applications using a single lithium 3V cell. Pin VS5V is the voltage input for the range 4.5V to 5.5V (car applications) in this case the voltage regulator V_REG regulates VS3V_AVCC to typically 3.0V.
PAGE 21
ATA5745/ATA5746 [Preliminary] Figure 5-2. Standby Mode (CLK_OUT_CTRL0 or CLK_OUT_CTRL1 = 1) CLK_OUT tXTO_Startup ENABLE Standby Mode 5.3 Active Mode The Active mode is enabled by setting the level on pin RX to high. In Active mode, the RX signal path is enabled and if a valid signal is present it will be transferred to the connected microcontroller. Table 5-3. Active Mode RX ENABLE Function 1 1 Active mode During TStartup_PLL the PLL is enabled and starts up.
PAGE 22
Table 5-4. Start-up Time ATA5745 (433.92 MHz) BR1 BR0 0 0 0 1 1 0 1 1 Table 5-5.
PAGE 23
ATA5745/ATA5746 [Preliminary] 6. Bit Rate Ranges Configuration of the bit rate ranges is carried out via the two pins BR0 and BR1. The microcontroller uses these two interface lines to set the corner frequencies of the band-pass data filter. Switching the bit rate ranges while the RF front end is in Active mode can be done on the fly and will not take longer than 100 µs if done while remaining in either ASK or FSK mode.
PAGE 24
Figure 6-1. Examples of Supported Modulation Formats TEE MAN: TEE Logic 0 TEE TEE TEE Logic 1 TEE PWM: TEE TEE TEE Logic 0 TEE Logic 1 Logic 0 TEE VPWM: Logic 1 TEE TEE On Transition Low to High Logic 0 Logic 1 TEE TEE TEE On Transition High to Low TEE PPM: TEE TEE Logic 0 TEE Figure 6-2.
PAGE 25
ATA5745/ATA5746 [Preliminary] 7. ASK_NFSK The ASK_NFSK pin allows the microcontroller to rapidly switch the RF front end between demodulation modes. A logic 1 on this pin selects ASK mode, and a logic 0 FSK mode. The time to change modes (TStartup_Sig_Proc) depends on the bit rate range being selected (not current bit rate range) and is given in Table 5-4 on page 22. This response time is specified for applications that require an ASK preamble followed by FSK data (for typical TPM applications).
PAGE 26
8. Polling Current Calculation Figure 8-1. Polling Cycle ENABLE ISupply IStartup_PLL IStartup_PLL RX IActive IStandby IActive IStandby TBitcheck (= 1 / Signal_Bitrate (average) TStartup_Sig_Proc (Startup Signal Processing) TStartup_PLL (Startup RF-PLL) In an RKE and TPM system, the average chip current in Polling mode, IPolling, is an important parameter. The polling period must be controlled by the connected microcontroller via the pins ENABLE and RX.
PAGE 27
ATA5745/ATA5746 [Preliminary] 9. 3V Application Figure 9-1. 3V Application RX BR0 BR1 ASK_NFSK CDEM TEST2 output TEST1 output CLK_OUT output CLK_OUT_CTRL1 SENSE input CLK_OUT_CTRL0 LNA_IN TEST3 RSSI ATA5745/ ATA5746 SENSE_CTRL LNA_GND GND VS5V XTAL2 VCC DVCC ENABLE VS3V_AVCC 2.2 pF output VSS DATA_OUT output XTAL1 Microcontroller 15 nF RFIN 68 nH/36 nH 315 MHz/433.92 MHz 68 nF 18 pF 18 pF 68 nF VCC = 2.7V to 3.
PAGE 28
10. 5V Application Figure 10-1. 5V Application With Reduced/Full Sensitivity RX BR0 BR1 ASK_NFSK TEST2 output TEST1 output CLK_OUT output CLK_OUT_CTRL1 SENSE input CLK_OUT_CTRL0 LNA_IN TEST3 RSSI ATA5745/ ATA5746 SENSE_CTRL RSense LNA_GND 68 nH/36 nH 315 MHz/433.92 MHz 68 nF 18 pF RFIN GND VS5V XTAL2 VCC DVCC ENABLE VS3V_AVCC 2.2 pF output VSS CDEM output XTAL1 Microcontroller output DATA_OUT 15 nF 18 pF 2.2 µF 68 nF VCC = 4.5V to 5.
PAGE 29
ATA5745/ATA5746 [Preliminary] 11. Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
PAGE 30
13. Electrical Characteristics: General (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 315 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No. Parameters 2.4 3 3.1 3.
PAGE 31
ATA5745/ATA5746 [Preliminary] 13. Electrical Characteristics: General (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 315 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No.
PAGE 32
13. Electrical Characteristics: General (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 315 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No. Parameters 3.11 Intermediate frequency 3.
PAGE 33
ATA5745/ATA5746 [Preliminary] 13. Electrical Characteristics: General (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 315 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No. Parameters 3.20 RSSI output 3.
PAGE 34
13. Electrical Characteristics: General (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 315 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”.
PAGE 35
ATA5745/ATA5746 [Preliminary] 13. Electrical Characteristics: General (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 315 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No. Parameters 4.
PAGE 36
14. Electrical Characteristic: 3V Application All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No. 7 Parameters Test Conditions Pin Symbol Min. Typ. Max.
PAGE 37
ATA5745/ATA5746 [Preliminary] 15. Electrical Characteristics: 5V Application All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No.
PAGE 38
16. Digital Timing Characteristics All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics” No. 9 9.1 Parameters Extended basic clock cycle 10 Active Mode 10.
PAGE 39
ATA5745/ATA5746 [Preliminary] 17. Digital Port Characteristics All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics” No.
PAGE 40
17. Digital Port Characteristics (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics” No.
PAGE 41
ATA5745/ATA5746 [Preliminary] 17. Digital Port Characteristics (Continued) All parameters refer to GND and are valid for Tamb = –40°C to +105°C, VVS3V_AVCC = VVS5V = 2.7V to 3.3V, and VVS5V = 4.5V to 5.5V. Typical values are given at VVS3V_AVCC = VVS5V = 3V, Tamb = 25°C, and fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics” No.
PAGE 42
18. Ordering Information Extended Type Number ATA5745-PXPW Package MOQ QFN24 1500 pcs Remarks 5 mm × 5 mm, Pb-free, 433.92 MHz ATA5746-PXPW QFN24 1500 pcs 5 mm × 5 mm, Pb-free, 315 MHz ATA5745-PXQW QFN24 6000 pcs 5 mm × 5 mm, Pb-free, 433.92 MHz ATA5746-PXQW QFN24 6000 pcs 5 mm × 5 mm, Pb-free, 315 MHz 19. Package Information Package: QFN 24 - 5 x 5 Exposed pad 3.6 x 3.6 (acc. JEDEC OUTLINE No. MO-220) Dimensions in mm Not indicated tolerances ±0.05 5 0.9±0.1 +0 3.6 0.05-0.
PAGE 43
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