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
