CS4207 Datasheet, PDF (9/144 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio CODEC with Headphone Amp

CS4207
SYNC
10 SYNC Clock (Input) - 48 kHz sync clock from the HD Audio Bus.
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
12 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. Electrical
characteristics are specified in the DC Electrical Characteristics table.
MICIN_L-
MICIN_L+
MICIN_R+
MICIN_R-
17
18 Microphone Input Left/Right (Input) - The full-scale level is specified in the ADC Analog Characteris-
19 tics specification table.
20
LINEIN_L+
LINEIN_C-
LINEIN_R+
21
22
23
Analog Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specification
table.
VA_REF
VA
24 Analog Power (Input) - Positive power for the internal analog section. VA_REF is the return pin for the
25 VBIAS cap.
AGND
26 Analog Ground (Input) - Ground reference for the internal analog section.
VREF+
27 Positive Voltage Reference (Output) - 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- 30
LINEOUT_L2+ 31
LINEOUT_R2+ 32
LINEOUT_R2- 33 Analog Audio Output (Output) - The full-scale output level is specified in the DAC Analog Character-
LINEOUT_L1- 34 istics specification table
LINEOUT_L1+ 35
LINEOUT_R1+ 36
LINEOUT_R1- 37
HPOUT_L
38
Analog Headphone Output (Output) - The full-scale output level is specified in the DAC Analog Char-
acteristics specification table.
HPREF
39 Pseudo Diff. Headphone Reference (Input) - Ground reference for the headphone amplifiers.
HPOUT_R
40
Analog Headphone Output (Output) - The full-scale output level is specified in the DAC Analog Char-
acteristics specification table.
VHP_FILT-
FLYN
FLYC
VHP_FILT+
FLYP
VA_HP
SPDIF_IN
41
Inverting Charge Pump Filter Connection (Output) - Power supply from the inverting charge pump
that provides the negative rail for the headphone amplifier.
42
Charge Pump Cap Negative Node (Output) - Negative node for the inverting charge pump’s flying
capacitor.
43
Charge Pump Cap Common Node (Output) - Common positive node for the step-down and inverting
charge pumps’ flying capacitor.
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.
45
Charge Pump Cap Positive Node (Output) - Positive node for the step-down charge pump’s flying
capacitor.
46 Analog Power For Headphone (Input) - Positive power for the internal analog headphone section.
47 S/PDIF Input (Input) - Input to internal S\PDIF Receiver.
SPDIF_OUT1
Thermal Pad
48 S/PDIF Output (Output) - Output from internal S/PDIF Transmitter.
- HP Ground (Thermal Pad) - Ground reference for the internal headphone section.
DS880F1
9