CS4207

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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Documentation

  • 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) ±12dB, 1.0dB 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

Related Documents

Design Resources

Tools and Software

Part Resolution (bits) Dynamic Range (dB) THD+N (dB) Sample Rate (kHz) Analog I/O Power Supply (V) Type Comments Package
CS4207 24 105 ADC;
101 HP;
110 Lineout
-88 ADC;
-89 HP;
-94 Lineout
192 DAC;
96 ADC
Single-ended or Differential VD = 1.5 to 1.8;
VA = 3.3 to 5;
V_HP = 3.3 to 5;
V_HD = 1.5 to 3.3;
VL = 3.3
Multi-Channel 6 DACs, 4 ADCs, Ground-centered HP Amp, Mic Pre, PGA, SPDIF TX/RX, Jack Detect 48 QFN
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