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.

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

DACs 6
ADCs 4
DAC Dynamic Range (dB) 110
ADC Dynamic Range (dB) 105
DAC THD+N (dB) -94
ADC THD+N (dB) -88
DAC Sample Rate (kHz) 32-192
ADC Sample Rate (kHz) 8-48
Analog Power Supply (V) 3.3-5
Supply Current (µA) 1.5-1.8
Bus Interface HD-Audio
Package 48 QFN

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