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Part Number: AD73422
Description: The AD73422 is a single device incorporating a dual analog front end and a microcomputer optimized for digital signal p...
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AD73422
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DataSheet
General Description
AD73422 General Description
The AD73422 is a single device incorporating a dual analog front end and a microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications.
The AD73422's analog front end (AFE) section features a dual front-end converter for general purpose applications including speech and telephony. The AFE section features two 16-bit A/D conversion channels and two 16-bit D/A conversion channels. Each channel provides 77 dB signal-to-noise ratio over a voiceband signal bandwidth. It also features an input-to-output gain network in both the analog and digital domains. This is featured on both codecs and can be used for impedance matching or scaling when interfacing to Subscriber Line Interface Circuits (SLICs).
AD73422 Maximum Ratings
AVDD, DVDD to GND . . . . . . . . . . . . . . .. 0.3 V to +4.6 V
AGND to DGND . . . . . . . . . . . . . . . . . . . 0.3 V to +0.3 V
Digital I/O Voltage to DGND . . . .. 0.3 V to DVDD + 0.3 V
Analog I/O Voltage to AGND . . . . 0.3 V to AVDD + 0.3 V
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . 20°C to +85°C
Storage Temperature Range . . . . . . 40°C to +125°C
Maximum Junction Temperature . . . . . . . . . . . . . +150°C
PBGA, JA Thermal Impedance . . . . . . . . . . . . . . 25°C/W
AGND to DGND . . . . . . . . . . . . . . . . . . . 0.3 V to +0.3 V
Digital I/O Voltage to DGND . . . .. 0.3 V to DVDD + 0.3 V
Analog I/O Voltage to AGND . . . . 0.3 V to AVDD + 0.3 V
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . 20°C to +85°C
Storage Temperature Range . . . . . . 40°C to +125°C
Maximum Junction Temperature . . . . . . . . . . . . . +150°C
PBGA, JA Thermal Impedance . . . . . . . . . . . . . . 25°C/W
AD73422 Features
AFE PERFORMANCE
Two 16-Bit A/D Converters
Two 16-Bit D/A Converters
Programmable Input/Output Sample Rates
78 dB ADC SNR
77 dB DAC SNR
64 kS/s Maximum Sample Rate
90 dB Crosstalk
Low Group Delay (25 s Typ per ADC Channel,50 s Typ per DAC Channel)
Programmable Input/Output Gain
On-Chip Reference
DSP PERFORMANCE
19 ns Instruction Cycle Time @ 3.3 V, 52 MIPS
Sustained Performance
Single-Cycle Instruction Execution
Single-Cycle Context Switch
3-Bus Architecture Allows Dual Operand Fetches in
Every Instruction Cycle
Multifunction Instructions
Power-Down Mode Featuring Low CMOS Standby
Power Dissipation with 400 Cycle Recovery from
Power-Down Condition
Low Power Dissipation in Idle Mode
Two 16-Bit A/D Converters
Two 16-Bit D/A Converters
Programmable Input/Output Sample Rates
78 dB ADC SNR
77 dB DAC SNR
64 kS/s Maximum Sample Rate
90 dB Crosstalk
Low Group Delay (25 s Typ per ADC Channel,50 s Typ per DAC Channel)
Programmable Input/Output Gain
On-Chip Reference
DSP PERFORMANCE
19 ns Instruction Cycle Time @ 3.3 V, 52 MIPS
Sustained Performance
Single-Cycle Instruction Execution
Single-Cycle Context Switch
3-Bus Architecture Allows Dual Operand Fetches in
Every Instruction Cycle
Multifunction Instructions
Power-Down Mode Featuring Low CMOS Standby
Power Dissipation with 400 Cycle Recovery from
Power-Down Condition
Low Power Dissipation in Idle Mode
AD73422
PDF/DataSheet Download
- Datasheet: AD73422
- File Size: 406224 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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