CS4270-DZZ Cirrus Logic Inc, CS4270-DZZ Datasheet - Page 4

• Manufacturer Part Number: CS4270-DZZ
• Description: IC CODEC 24BIT 105DB 24TSSOP
• Manufacturer: Cirrus Logic Inc
• Type: Stereo Audior

Specifications of CS4270-DZZ

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 105 / 105
• Voltage - Supply, Analog: 3.1 V ~ 5.25 V
• Voltage - Supply, Digital: 3.1 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Audio Codec Type: Stereo
• No. Of Adcs: 1
• No. Of Dacs: 1
• No. Of Input Channels: 3
• No. Of Output Channels: 3
• Adc / Dac Resolution: 24bit
• Sampling Rate: 216kSPS
• Ic Interface Type: I2C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1002 - BOARD EVAL FOR CS4270 CODEC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 598-1622

4
1. PIN DESCRIPTIONS
1.1
SDIN
LRCK
MCLK
SCLK
VD
DGND
SDOUT
VLC
SDA/CDOUT 9 Serial Control Data (Input/Output) - SDA is a data I/O line in I²C Mode. CDOUT is the output data line for the
SCL/CCLK
AD0/CS
AD1/CDIN
AD2
RST
AINA
AINB
VQ
FILT+
VA
AGND
MUTEA
MUTEB
AOUTA
AOUTB
Pin Name #
Software Mode
10
11
12
13 Address Bit 2 (I²C) (Input) - AD2 is a chip address pin in I²C format.
14
15
16
17 Quiescent Voltage (Output) - Filter connection for the internal quiescent voltage.
18 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
19 Analog Power (Input) - Positive power for the analog section.
20 Analog Ground (Input) - Ground reference for the analog section.
21
24
22
23
1 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
2
3 Master Clock (Input) - Clock for the delta-sigma modulator and the digital filters.
4 Serial Bit Clock (Input/Output) - Serial bit clock for the serial audio interface.
5 Digital Power (Input) - Positive power for the digital section.
6 Digital Ground (Input) - Ground reference for the digital section.
7 Serial Audio Data Output (Output) - Output for two’s complement serial audio data.
8 Serial Control Port Power (Input) - Positive power for the Serial Control Port.
Left Right Clock (Input/Output) - Determines which channel, left or right, is currently active on the serial audio
data line. The frequency of the left/right clock must be at the audio sample rate, Fs.
Serial Control Port in SPI format.
Serial Control Port Clock (Input) - SCL is the serial input Clock for the Serial Control Port in I²C format. CCLK
is the serial input Clock for the Serial Control Port in SPI format.
Address Bit 0 (I²C)/Serial Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I²C format.
CS is the chip select signal for SPI format.
Address Bit 1 (I²C)/Serial Control Data (Input) - AD1 is a chip address pin in I²C Mode. CDIN is the input
data line for the Serial Control Port in SPI format.
Reset (Input) - Input for resetting all internal registers to their default settings and for placing the device in a
low-power mode.
Analog Audio Input (Input) - Analog inputs to the ADC.
Mute Control (Output) - Mute control signal used to control the state of the optional external analog muting
circuitry. See
Analog Audio Output (Output) - Analog outputs from the DAC.
SDA/CDOUT
SCL/CCLK
AD1/CDIN
Section 5.6 on page
AD0/CS
SDOUT
DGND
MCLK
LRCK
SCLK
SDIN
VLC
VD
1
2
3
4
5
6
7
8
9
10
11
12
27.
Pin Description
24
23
22
21
20
19
18
17
16
15
14
13
MUTEB
AOUTB
AOUTA
MUTEA
AGND
VA
FILT+
VQ
AINB
AINA
RST
AD2
CS4270
DS686F1