CS4349 Datasheet, PDF (6/40 Pages) Cirrus Logic – 192 kHz DAC w/ Volume Control and 1 Vrms @ 3.3 V

1. PIN DESCRIPTION
DIF2(AD1/CDOUT)
1
DEM(AD0/CS)
2
DIF0(SDA/CDIN)
3
DIF1(SCL/CCLK)
4
VLC
5
VD_FILT
6
GND
7
POPGUARD(TSTO)
8
VLS
9
SCLK
10
SDIN
11
LRCK
12
CS4349
24
RST
23
TSTO
22
AOUTB
21
BMUTEC
20 ^VQ
19
GND
18
VA
17
VBIAS
16
AMUTEC
15
AOUTA
14
TSTO
13
TSTO
Pin Name
VLC
VD_FILT
GND
VLS
SCLK
SDIN
LRCK
TSTO
TSTO
AOUTA
AOUTB
AMUTEC
BMUTEC
VBIAS
VA
VQ
RST
# _{Pin Description}
5 Control Interface Power (Input) - Positive power for the hardware/software control interface
6 Regulator Voltage (Output) - Filter connection for internal voltage regulator
7, 19 Ground (Input) - Ground reference
9 Serial Audio Interface Power (Input) - Positive power for the serial audio interface
10 Serial Clock (Input) - Serial bit-clock for the serial audio interface
11 Serial Audio Data Input (Input) - Input for two’s complement serial audio data
12
Left/Right Clock (Input) - Determines which channel, Left or Right, is currently active on the serial
audio data line
13 Test Output (Output) - This pin needs to be floating and not connected to any trace or plane.
14
23
Test Output (Output) - These pins need to be floating and not connected to any trace or plane.
15 Analog Outputs (Output) - The full-scale output level is specified in “DAC Analog Characteristics -
22 Commercial (-CZZ)” on page 9.
16
21
Mute Control (Output) - Control signals for optional mute circuit
17 Positive Voltage Reference (Output) - Positive reference voltage for the internal DAC
18 Analog Power (Input) - Positive power supply for the analog section
20 Quiescent Voltage (Output) - Filter connection for internal quiescent voltage
24
Reset (Input) - When pulled low, device will power down and reset all internal registers to their default
settings.
6
DS782F1