CDB4392 Cirrus Logic Inc, CDB4392 Datasheet - Page 22

• Manufacturer Part Number: CDB4392
• Description: EVALUATION BOARD FOR CS4392
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4392

• Number Of Dac's: 2
• Number Of Bits: 24
• Outputs And Type: 2, Differential
• Sampling Rate (per Second): 192k
• Data Interface: Serial
• Dac Type: Voltage
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS4392
• Description/function: Audio D/A
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS4392
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

6.3
6.4
6.4.1
6.4.2
6.5
6.5.1
22
INVERT_A
MUTE
Binary Code
7
7
0000000
0010100
0101000
1011010
0111100
Channel A Volume Control - Address 03h
CHANNEL B VOLUME CONTROL - ADDRESS 04H
Mode Control 2 - Address 05h
Function:
Function:
Function:
Table 14. Digital Volume Control Example Settings
Mute (Bit 7)
Volume Control (Bits 6:0)
Invert Signal Polarity (Bits 7:6)
The digital volume control allows the user to attenuate the signal in 1 dB increments from 0 to -127 dB.
Volume settings are decoded as shown in Table 14. The volume changes are implemented as dictated
by the Soft and Zero Cross bits in the Volume and Mixing Control register (see section 6.2.2).
See 4.4 Channel B Volume Control - Address 04h
The Digital-to-Analog converter output will mute when enabled. The common mode voltage on the
output will be retained. The muting function is effected, similiar to attenuation changes, by the Soft
and Zero Cross bits in the Volume and Mixing Control register. The MUTEC pin for that channel will
go active during the mute period if the Mute function is enabled. Both the AMUTEC and BMUTEC
will go active if either MUTE register is enabled and the MUTEC A = B bit (register 5) is enabled.
When set to 1, this bit inverts the signal polarity for the appropriate channel. This is useful if a board
layout error has occurred, or an other situations where a 180 degree phase shift is desirable. Default
is 0.
INVERT_B
VOL6
6
6
Decimal Value
CPEN
VOL5
20
40
60
90
0
5
5
VOL4
PDN
4
4
Volume Setting
-20 dB
-40 dB
-60 dB
-90 dB
0 dB
MUTEC A = B
VOL3
3
3
FREEZE
VOL2
2
2
MCLKDIV2
VOL1
1
1
CS4392
Reserved
DS459PP3
VOL0
0
0