CS4270-CZZ Cirrus Logic Inc, CS4270-CZZ Datasheet - Page 40

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

Specifications of CS4270-CZZ

• Package / Case: 24-TSSOP
• 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: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 216 KSPS
• Interface Type: Serial (I2S, SPI)
• Resolution: 24 bit
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 10 C
• Number Of Channels: 2 ADC/2 DAC
• Thd Plus Noise: - 95 dB ADC / - 95 dB DAC
• 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
• Other names: 598-1040-5

40
8.7
8.8
vol<7>
vol<7>
dacA
dacB
7
7
DAC Channel A Volume Control - Address 07h
DAC Channel B Volume Control - Address 08h
Function:
See
Function:
The digital volume control allows the user to attenuate the signal in 0.5 dB increments from 0 to -127 dB.
The vol<0> bit activates a 0.5 dB attenuation when set, and no attenuation when cleared. The Vol[7:1]
bits activate attenuation equal to their decimal value (in dB). Example volume settings are decoded as
shown in
Cross bits in the Transition Control register (see
Section 8.8 DAC Channel B Volume Control - Address
vol<6>
vol<6>
dacA
dacB
Table
6
6
13. The volume changes are implemented as dictated by the DACSoft and DACZero-
Binary Code
00000000
00000001
00101000
00101001
11111110
11111111
vol<5>
vol<5>
dacA
dacB
5
5
Table 13. Digital Volume Control
vol<4>
vol<4>
dacA
dacB
4
4
Volume Setting
Section
-127.5 dB
vol<3>
vol<3>
-20.5 dB
-127 dB
-0.5 dB
dacA
dacB
-20 dB
0 dB
3
3
8.5.2).
08h.
vol<2>
vol<2>
dacA
dacB
2
2
vol<1>
vol<1>
dacA
dacB
1
1
CS4270
DS686PP1
vol<0>
vol<0>
dacA
dacB
0
0