Low Power 4-In/6-Out HD Audio Codec with Headphone Amp

The CS4207 is a highly integrated multi-channel low power HD audio codec featuring 192 kHz DACs, 96 kHz ADCs, 192 kHz S/PDIF transmitter and receiver, microphone preamp and bias voltage, and a ground centered headphone driver. Based on multibit, Delta Sigma modulation, it allows infinite sample rate adjustment between 32 kHz and 192 kHz. The ADC input path allows control of a number of features. The microphone input path includes a selectable programmable-gain pre-amplifier stage and a low noise MIC bias voltage supply. A GA is available for line and microphone inputs and provides analog gain with soft ramp and zero cross transitions. The ADC also features an additional digital volume attenuator with soft ramp transitions.

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Features

Digital to Analog Features
  • DAC1 (Headphone/Line Out)
    • 101 dB dynamic range (A-wtd)
    • -88 dB THD+N
  • Headphone amplifier - GND centered
    • Integrated negative voltage regulator
    • No DC-blocking capacitor required
    • 44 mW power/channel into 16 Ω
  • DAC2 & DAC3 (Line Outs)
    • 110 dB dynamic range (A-wtd)
    • -89 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)
    • -89 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

Parametric Specifications

Discontinued Product
Recommended Replacement: CS42L43

Technical Documents

Errata: CS4207 Rev C0/C1/C2 Silicon

Aug 20, 2015, ER880C5 : 171 Kb

CS4207 Product Data Sheet

Aug 8, 2012, DS880F4 : 889 Kb

Design Resources

CDB4207 Evaluation Board Data Sheet

Jan 29, 2010, DS880DB1 : 897 Kb

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Comprehensive Solutions