General Description

The CS4207 is a highly integrated multi-channel low power HD Audio Codec featuring 192 kHz DACs, 96 kHz ADCs, 192 kHz S/PDIFTransmitters and Receiver, Microphone pre-amp and bias voltage, and a ground centered Headphone driver. Based on multi-bit, delta-sigma modulation, it allows infinite sample rate adjustment between 32 kHz and 192 kHz.

DIGITAL to ANALOG FEATURES

DAC1 (Headphone)
– 101 dB Dynamic Range (A-wtd)
– -89 dB THD+N
Headphone Amplifier - GND Centered
– Integrated Negative-voltage Regulator
– No DC-blocking Capacitor Required
– 50 mW Power/Channel into 16
DAC2 & DAC3 (Line Outs)
– 110 dB Dynamic Range (A-wtd)
– -94 dB THD+N
– Differential Balanced or Single-ended
Each DAC Supports 32 kHz to 192 kHz Sample Rates Independently.
Digital Volume Control
– +6.0 dB to -57.5 dB in 0.5 dB Steps
– Zero Cross and/or Soft Ramp Transitions
Independent Support of D0 and D3 Power States for Each DAC
Fast D3 to D0 Transition
– Audio Playback in Less Than 50 ms

ANALOG to DIGITAL FEATURES

ADC1 & ADC2
– 105 dB Dynamic Range (A-wtd)
– -88 dB THD+N
– Differential Balanced or Single-ended Inputs
– Analog Programmable Gain Amplifier (PGA) ±12 dB, 1.0 dB Steps, with Zero Cross Transitions and Mute
MIC Inputs
– Pre-amplifier with Selectable 0 dB, +10 dB, +20 dB, and +30 dB Gain Settings
– Programmable, Low-noise MIC Bias Level
Each ADC Supports 8 kHz to 96 kHz Sample Rates Independently
Additional Digital Attenuation Control
– -13.0 dB to -51.0 dB in 1.0 dB steps
– Zero Cross and/or Soft Ramp Transitions
Digital Interface for Two Dual Digital Mic Inputs
Independent Support of D0 and D3 Power States for Each ADC

System Features

Very Low D3 Power Dissipation of <7 mW
– Jack Detect Active in D3
– HDA BITCLK Not Required for D3 State
Jack Detect Does Not Require HDA Bus BITCLK
All Configuration Settings are Preserved in D3 State
Pop/Click Suppression in State Transitions
Detects Wake Event and Generates Power State Change Request when HDA Bus Controller is in D3
Variable Power Supplies
– 1.5 V to 1.8 V Digital Core Voltage
– 3.3 V to 5.0 V Analog Core Voltage
– 3.3 V to 5.0 V Headphone Drivers
– 1.5 V to 3.3 V HD Bus Interface Logic
– 3.3 V Interface Logic levels for GPIO, S/PDIF, and Digital Mic
Individual Power-down Managed
– ADCs, DACs, PGAs, Headphone Driver, S/PDIF Receiver, and Transmitters