CS4351_05 Datasheet, PDF (5/37 Pages) Cirrus Logic – 192 kHz Stereo DAC with 2 Vrms Line Out

1. PIN DESCRIPTION
SDIN
1
SCLK
2
LRCK
3
MCLK
4
VD
5
GND
6
DIF1(SCL/CCLK)
7
DIF0(SDA/CDIN)
8
DEM(AD0/CS)
9
RST
10
20
VL
19
AMUTEC
18
AOUTA
17
VA_H
16
GND
15
AOUTB
14
BMUTEC
13
VQ
12
VBIAS
11
VA
CS4351
Pin Name #
Pin Description
SDIN
1 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
SCLK
2 Serial Clock (Input) - Serial clock for the serial audio interface.
LRCK
3
Left / Right Clock (Input) - Determines which channel, Left or Right, is currently active on the serial
audio data line.
MCLK
4 Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
VD
5 Digital Power (Input) - Positive power supply for the digital section.
GND
6
16
Ground (Input) - Ground reference.
RST
10 ^{Reset (Input) - Powers down device and resets all internal resisters to their default settings when}
enabled.
VA
11 Low Voltage Analog Power (Input) - Positive power supply for the analog section.
VBIAS
12 Positive Voltage Reference (Output) - Positive reference voltage for the internal DAC.
VQ
13 Quiescent Voltage (Output) - Filter connection for internal quiescent voltage.
VA_H
17 High Voltage Analog Power (Input) - Positive power supply for the analog section.
VL
20 Serial Audio Interface Power (Input) - Positive power for the serial audio interface
BMUTEC
AMUTEC
14
19 ^{Mute Control (Output) - Control signal for optional mute circuit.}
AOUTB
AOUTA
15 Analog Outputs (Output) - The full scale analog line output level is specified in the Analog Character-
18 istics table.
Control Port Definitions
SCL/CCLK
7 Serial Control Port Clock (Input) - Serial clock for the control port interface.
SDA/CDIN
8 Serial Control Data (Input/Output) - Input/Output for I²C data. Input for SPI data.
AD0/CS
9 Address Bit 0 / Chip Select (Input) - Chip address bit in I²C Mode. Control Port enable in SPI Mode.
Stand-Alone Definitions
DIF0
DIF1
8 Digital Interface Format (Input) - Defines the required relationship between the Left Right Clock,
7 Serial Clock, and Serial Audio Data.
DEM
9
De-emphasis (Input) - Selects the standard 15 µs/50 µs digital de-emphasis filter response for 44.1
kHz sample rates
DS566F1
5