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CS42L51-CNZ 数据表(PDF) 7 Page - Cirrus Logic

部件名 CS42L51-CNZ
功能描述  Low Power, Stereo CODEC with Headphone Amp
Download  83 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CS42L51-CNZ 数据表(HTML) 7 Page - Cirrus Logic

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7
CS42L51
1. PIN DESCRIPTIONS - SOFTWARE (HARDWARE) MODE
Pin Name
#
Pin Description
LRCK
1
Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the
serial audio data line.
SDA/CDIN
2
Serial Control Data (Input/Output) - SDA is a data I/O in I²C mode. CDIN is the input data line for the
control port interface in SPI mode.
(MCLKDIV2)
MCLK Divide by 2 (Input) - Hardware Mode: Divides the MCLK by 2 prior to all internal circuitry.
SCL/CCLK
3
Serial Control Port Clock (Input) - Serial clock for the serial control port.
(I²S/LJ)
Interface Format Selection (Input) - Hardware Mode: Selects between I²S & Left-Justified interface for-
mats for the ADC & DAC.
AD0/CS
4
Address Bit 0 (I²C) / Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I²C mode; CS
is the chip select signal for SPI format.
(DEM)
De-Emphasis (Input) - Hardware Mode: Enables/disables the de-emphasis filter.
VA_HP
5
Analog Power For Headphone (Input) - Positive power for the internal analog headphone section.
FLYP
6
Charge Pump Cap Positive Node (Input) - Positive node for the external charge pump capacitor.
GNDHP
7
Analog Ground (Input) - Ground reference for the internal headphone/charge pump section.
FLYN
8
Charge Pump Cap Negative Node (Input) - Negative node for the external charge pump capacitor.
VSS_HP
9
Negative Voltage From Charge Pump (Output) - Negative voltage rail for the internal analog head-
phone section.
AOUTB
AOUTA
10
11
Analog Audio Output (Output) - The full-scale output level is specified in the DAC Analog Characteris-
tics specification table.
VA
12
Analog Power (Input) - Positive power for the internal analog section.
AGND
13
Analog Ground (Input) - Ground reference for the internal analog section.
10
9
8
7
6
5
4
3
2
1
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
CS42L51
SDA/CDIN (MCLKDIV2)
SCL/CCLK (I²S/LJ)
AD0/CS (DEM)
FLYP
GNDHP
FLYN
AFILTA
AIN1A
AIN1B
AIN2A
AIN2B/BIAS
MICIN1/AIN3A
MICIN2/BIAS/AIN3B
AFILTB
VA_HP
LRCK


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