CS43L22-CNZ Cirrus Logic Inc, CS43L22-CNZ Datasheet - Page 24

• Manufacturer Part Number: CS43L22-CNZ
• Description: IC DAC W/HDPN & SPKR AMPS 40QFN
• Manufacturer: Cirrus Logic Inc

Specifications of CS43L22-CNZ

• Package / Case: 40-QFN
• Number Of Bits: 24
• Data Interface: Serial
• Number Of Converters: 1
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Conversion Rate: 96 KSPS
• Resolution: 24 bit
• Interface Type: Serial
• Operating Supply Voltage: 1.8 V or 2.5 V
• Operating Temperature Range: + 85 C
• Mounting Style: SMD/SMT
• Number Of Dac Outputs: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1529 - BOARD EVAL FOR CS43L22
• Power Dissipation (max): -
• Settling Time: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1650

24
4.3
Referenced Control
Analog Front End
PASSB=A ............................
ANLGSFTx ..........................
ANLGZCx ............................
PASSxSEL4,3,2,1 ................
PASSxMUTE .......................
PASSxVOL[7:0] ...................
PASSTHRUx........................
Analog Passthrough
The CS43L22 accommodates analog routing of the analog input signal directly to the headphone amplifiers
by using the PASSTHRUx mux. This feature is useful in applications that utilize an FM tuner where audio
recovered over-the-air must be transmitted to the headphone amplifier directly. This analog passthrough
path reduces power consumption and is immune to modulator switching noise that could interfere with some
tuners.
Four analog input channels can be chosen or summed by using the PASSxSEL bits as shown in
to provide input to the CS43L22 when in analog passthrough mode. A pair of passthrough amplifiers can be
used to mute and apply gain to the input signals.
AIN2A
AIN3A
AIN4A
AIN1A
AIN4B
AIN3B
AIN2B
AIN1B
PASSBSEL[4:1]
PASSASEL[4:1]
Register Location
“Passthrough Channel B=A Gang Control” on page 42
“Ch. x Analog Soft Ramp” on page 42
“Ch. x Analog Zero Cross” on page 42
“Passthrough Input Channel Mapping” on page 42
“Passthrough Mute” on page 44
“Passthrough x Volume” on page 46
“Passthrough Analog” on page 44
Figure 8. Analog Passthrough Signal Flow
Σ
Σ
PASSAVOL[7:0]
Confidential Draft
PASSBVOL[7:0]
PASSAMUTE
+12dB/-60dB
0.5 dB steps
PASSBMUTE
ANLGGZCA
ANLGSFTA
+12dB/-60dB
ANLGGZCB
0.5 dB steps
ANLGSFTB
PASSB=A
PASSB=A
Analog Passthru
Amplifiers
3/4/10
AMPLIFIER MUX
ANALOG PASS
HEADPHONE
THRU TO
DAC B
Output
DAC A
Output
PASSTHRUA
PASSTHRUB
CS43L22
DS792F2
Figure 8