Features: ` 16-BIT DELTA-SIGMA DAC AND ADC
` DIFFERENTIAL INPUT AND OUTPUT
` DESIGNED FOR MODEM ANALOG FRONT END:
Supports up to 56kbps Operation
` ANALOG PERFORMANCE:
Sampling Frequency: 7.2kHz to 26kHz
Dynamic Range: 88dB (typ) at fS = 8kHz, fIN = 1kHz
` SYSTEM CLOCK: 512fS
` MASTER OR SLAVE OPERATION
` ON-CHIP CRYSTAL OSCILLATOR CIRCUIT
` ADC-TO-DAC LOOP-BACK MODE
` TIME SLOT MODE SUPPORTS UP TO FOUR CODECs ON A SINGLE SERIAL INTERFACE
` POWER-DOWN MODE: 60 A (typ)
` SINGLE +2.7V TO +3.6V POWER SUPPLY
` SMALL PACKAGE: 24-Lead SSOP
Application· SOFTWARE MODEMS FOR:
· Personal Digital Assistant
· Notebook and Hand-Held PCs
· Set-Top Box
· Digital Television
· Embedded Systems
· PORTABLE VOICE RECORDER/PLAYER
· SPEECH RECOGNITION/SYNTHESIS
· TELECONFERENCING PRODUCTSPinout
Specifications(1)Supply Voltage, +VDD , +VCC.........................................................+6.5V
(2)Supply Voltage Differences ........................................................... ±0.1V
(3)GND Voltage Differences ............................................................... ±0.1V
Digital Input Voltage.................................................... 0.3V to VDD + 0.3V
Input Current (any pins except supply) ........................................... ±10mA
Power Dissipation ........................................................................... 300mW
Operating Temperature Range ............................................ 25 to +85
Storage Temperature......................................................... 55 to +125
Junction Temperature ......................................................................... 150
Lead Temperature (soldering, 5s)..................................................... +260
(reflow, 10s) ..................................................................................... +235
NOTES: (1) VCC , VDD . (2) Among VCC , VDD . (3) Among AGND, DGND.
DescriptionThe PCM3501 is a low cost, 16-bit CODEC designed for modem Analog Front End (AFE) and speech pro-cessing applications. The PCM3500's low power op-eration from +2.7V to +3.6V power supplies, along with an integrated power-down mode, make it ideal for portable applications.
The PCM3501 integrates all of the functions needed for a modem or voice CODEC, including delta-sigma digital-to-analog and analog-to-digital converters, in-put anti-aliasing filter, digital high-pass filter for DC blocking, and an output low-pass filter. The synchro-nous serial interface of PCM3501 provides for a simple, or glue-free interface to popular DSP and RISC processors. The serial interface also supports Time Division Multiplex-ing (TDM), allowing up to four CODECs to share a single 4-wire serial bus.
PCM3501 Data Sheet
