Cirrus-logic CS4207 User Manual download pdf (Page 9)

DS880F4 9

CS4207

RESET# 11 Reset (Input) - The device enters a low power mode when this pin is driven low.

GPIO1/

DMIC_SDA2/

SPDIF_OUT2

General Purpose I/O (Input/Output) - General purpose input or output line, or

Digital Mic Data Input (Input) - The second data input line from a digital microphone, or

S/PDIF Output (Output) - Output from internal S/PDIF Transmitter.

SENSE_A 13 Jack Sense Pin (Input/Output) - Jack sense detect.

GPIO2 14 General Purpose I/O (Input/Output) - General purpose input or output lines.

GPIO3 15 General Purpose I/O (Input/Output) - General purpose input or output lines.

MICBIAS 16

Microphone Bias (Output) - Provides a low noise bias supply for an external microphone. Elec-

trical characteristics are specified in the DC Electrical Characteristics table.

MICIN_L-

MICIN_L+

MICIN_R+

MICIN_R-

Microphone Input Left/Right (Input) - The full-scale level is specified in the ADC Analog Char-

acteristics specification table.

LINEIN_L+

LINEIN_C-

LINEIN_R+

Analog Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specifi-

cation table.

VA_REF

Analog Power (Input) - Positive power for the internal analog section. VA_REF is the return pin

for the VBIAS cap.

AGND 26 Analog Ground (Input) - Ground reference for the internal analog section.

VREF+ 27 Positive Voltage Reference (Ou

ut) - Positive reference voltage for the internal ADCs.

VCOM 28 Quiescent Voltage (Output) - Filter connection for internal quiescent voltage.

VBIAS 29 Positive Voltage Reference (Output) - Positive reference voltage for the internal DACs.

LINEOUT_L2-

LINEOUT_L2+

LINEOUT_R2+

LINEOUT_R2-

LINEOUT_L1-

LINEOUT_L1+

LINEOUT_R1+

LINEOUT_R1-

Analog Audio Output (Output) - The full-scale output level is specified in the DAC Analog Char-

acteristics specification table

HPOUT_L

HPOUT_R

Analog Headphone Output (Output) - The full-scale output level is specified in the DAC Analog

Characteristics specification table.

HPREF 39 Pseudo Diff. Headphone Reference (Input) - Ground reference for the headphone amplifiers.

VHP_FILT- 41

Inverting Charge Pump Filter Connection (Output) - Power supply from the inverting charge

pump that provides the negative rail for the headphone amplifier.

FLYN 42

Charge Pump Cap Negative Node (Output) - Negative node for the inverting charge pump’s fly-

ing capacitor.

FLYC 43

Charge Pump Cap Common Node (Output) - Common positive node for the step-down and

inverting charge pumps’ flying capacitor.

VHP_FILT+ 44

Non-Inverting Charge Pump Filter Connection (Output) - Power supply from the step-down

charge pump that provides the positive rail for the headphone amplifier.

FLYP 45

Charge Pump Cap Positive Node (Output) - Positive node for the step-down charge pump’s fly-

ing capacitor.

VA_HP 46

Analog Power For Headphone (Input) - Positive power for the internal analog headphone sec-

tion.

SPDIF_IN 47 S/PDIF Input (Input) - Input to internal S/PDIF Receiver.

SPDIF_OUT1 48 S/

PDIF

Output (Output) - Output from internal S/PDIF Transmitter.

HPGND TP

HP Ground (Input) - Ground reference for the internal headphone section. See “QFN Thermal

Pad” on page 144 for more information.

Pin Name QFN Pin Description

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 147 148

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Cirrus-logic CS4207 User Manual Page 9

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