CS4205-KQZ Cirrus Logic Inc, CS4205-KQZ Datasheet - Page 34

• Manufacturer Part Number: CS4205-KQZ
• Description: IC CODEC AC97 I2S 48-LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Audio Codec '97r

Specifications of CS4205-KQZ

• Package / Case: 48-LQFP
• Data Interface: Serial
• Resolution (bits): 18, 20 b
• Number Of Adcs / Dacs: 1 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 90 / 90
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 8
• Number Of Dac Outputs: 3
• Conversion Rate: 48 KSPs
• Interface Type: Serial (5-Wire)
• Resolution: 18 bit, 20 bit
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Number Of Channels: 1 ADC, 1 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 598-1182

5.12
POP
ST
3D
LD
MIX
MS
LPBK
Default
5.13
CR[3:0]
DP[3:0]
Default
This register is used to control the center and depth of the SRS stereo enhancement function in the effects engine.
Each step corresponds to 1.5 dB gain adjustment, with a total available range from 0 dB to -22.5 dB attenuation.
The recommended starting point for listening is -12 dB center attenuation and -4.5 dB depth attenuation, a register
value of 070Ch.
34
POP
D15
D15
0
General Purpose Register (Index 20h)
3D Control Register (Index 22h)
D14
D14
ST
0
D13
D13
3D
0
is mixed post 3D.
ment via the SRS Mono algorithm.
algorithm.
izer algorithm.
output of the stereo-to-mono mixer is sent to the mono output. When ‘set’, the output of the
microphone boost stage is sent to the mono output. The source of the stereo-to-mono mixer
is controlled by the TMM bit in the AC Mode Control Register (Index 5Eh). The source of the
microphone boost stage is controlled by the MS bit in the General Purpose Register
(Index 20h).
er. When ‘set’, the MIC2 input is selected. When ‘clear’, the MIC1 input is selected.
routes the output of the ADCs to the input of the DACs without involving the AC-link.
to the final left and right digital signals.
that is added to the final left and right digital signals.
PCM Out Path. When ‘clear’, the PCM out path is mixed pre 3D. When ‘set’, the PCM out path
Stereo Enhancement Enable. When ‘set’, the ST bit enables the simulated stereo enhance-
3D Enable. When ‘set’, the 3D bit enables the 3D stereo enhancement via the SRS Stereo
Loudness Enable. When ‘set’, the LD bit enables the loudness or “bass boost” via the equal-
Mono Output Path. This bit controls the source of the mono output driver. When ‘clear’, the
Microphone Select. The MS bit determines which of the two Mic inputs are passed to the mix-
Loopback Enable. When ‘set’, the LPBK bit enables the ADC/DAC Loopback Mode. This bit
0000h
Center Control. The CR[3:0] bits control the amount of the sum signal, (L+R), that is added
Depth Control. The DP[3:0] bits control the amount of processed difference signal, (L-R)
0000h. This value corresponds to -22.5 dB center and depth attenuation.
D12
D12
LD
0
CR3
D11
D11
0
CR2
D10
D10
0
CR1
MIX
D9
D9
CR0
MS
D8
D8
LPBK
D7
D7
0
D6
D6
0
0
D5
D5
0
0
D4
D4
0
0
DP3
D3
D3
0
DP2
D2
D2
0
CS4205
DP1
D1
D1
0
DS489PP4
DP0
D0
D0
0
p
,