CS4207-CNZ Datasheet, PDF (9/148 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio Codec with Headphone Amp

Pin Name
RESET#
GPIO1/
DMIC_SDA2/
SPDIF_OUT2
SENSE_A
GPIO2
GPIO3
QFN
11
12
13
14
15
MICBIAS
16
MICIN_L-
17
MICIN_L+
18
MICIN_R+
19
MICIN_R-
20
LINEIN_L+
21
LINEIN_C-
22
LINEIN_R+
23
VA_REF
24
VA
25
AGND
26
VREF+
27
VCOM
28
VBIAS
29
LINEOUT_L2- 30
LINEOUT_L2+ 31
LINEOUT_R2+ 32
LINEOUT_R2- 33
LINEOUT_L1- 34
LINEOUT_L1+ 35
LINEOUT_R1+ 36
LINEOUT_R1- 37
HPOUT_L
38
HPOUT_R
40
HPREF
39
VHP_FILT-
41
FLYN
42
FLYC
43
VHP_FILT+
44
FLYP
45
VA_HP
46
SPDIF_IN
47
SPDIF_OUT1 48
HPGND
TP
CS4207
Pin Description
Reset (Input) - The device enters a low power mode when this pin is driven low.
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.
Jack Sense Pin (Input/Output) - Jack sense detect.
General Purpose I/O (Input/Output) - General purpose input or output lines.
General Purpose I/O (Input/Output) - General purpose input or output lines.
Microphone Bias (Output) - Provides a low noise bias supply for an external microphone. Elec-
trical characteristics are specified in the DC Electrical Characteristics table.
Microphone Input Left/Right (Input) - The full-scale level is specified in the ADC Analog Char-
acteristics specification table.
Analog Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specifi-
cation table.
Analog Power (Input) - Positive power for the internal analog section. VA_REF is the return pin
for the VBIAS cap.
Analog Ground (Input) - Ground reference for the internal analog section.
Positive Voltage Reference (Output) - Positive reference voltage for the internal ADCs.
Quiescent Voltage (Output) - Filter connection for internal quiescent voltage.
Positive Voltage Reference (Output) - Positive reference voltage for the internal DACs.
Analog Audio Output (Output) - The full-scale output level is specified in the DAC Analog Char-
acteristics specification table
Analog Headphone Output (Output) - The full-scale output level is specified in the DAC Analog
Characteristics specification table.
Pseudo Diff. Headphone Reference (Input) - Ground reference for the headphone amplifiers.
Inverting Charge Pump Filter Connection (Output) - Power supply from the inverting charge
pump that provides the negative rail for the headphone amplifier.
Charge Pump Cap Negative Node (Output) - Negative node for the inverting charge pump’s fly-
ing capacitor.
Charge Pump Cap Common Node (Output) - Common positive node for the step-down and
inverting charge pumps’ flying capacitor.
Non-Inverting Charge Pump Filter Connection (Output) - Power supply from the step-down
charge pump that provides the positive rail for the headphone amplifier.
Charge Pump Cap Positive Node (Output) - Positive node for the step-down charge pump’s fly-
ing capacitor.
Analog Power For Headphone (Input) - Positive power for the internal analog headphone sec-
tion.
S/PDIF Input (Input) - Input to internal S/PDIF Receiver.
S/PDIF Output (Output) - Output from internal S/PDIF Transmitter.
HP Ground (Input) - Ground reference for the internal headphone section. See “QFN Thermal
Pad” on page 144 for more information.
DS880F4
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