CS44600-CQZR Cirrus Logic Inc, CS44600-CQZR Datasheet - Page 56
CS44600-CQZR
Manufacturer Part Number
CS44600-CQZR
Description
Audio Amplifiers 6ch 24-bit 192kHz Dig. Amp Cntrlr T&R
Manufacturer
Cirrus Logic Inc
Datasheet
1.CS44600-CQZ.pdf
(76 pages)
Specifications of CS44600-CQZR
Operating Supply Voltage
2.5 V
Supply Current
150 mA
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 10 C
Supply Type
Digital
Supply Voltage (max)
2.62 V
Supply Voltage (min)
2.37 V
Package / Case
LQFP-64
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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1. Convert the decimal integer to binary. This is MSTR_IVOL[7:0].
2. Select the bit representation of the desired 0.25 fractional increment. This is MSTR_FVOL[1:0].
3. Concatenate MSTR_IVOL[7:0]: MSTR_FVOL[1:0] to form a 10-bit binary value.
4. Perform a 2’s complement conversion on all 10 bits.
To convert from a 2’s complement integer:fraction value to a negative decimal, do the following:
1. Concatenate MSTR_IVOL[7:0]: MSTR_FVOL[1:0] to form a 10-bit binary value.
2. Perform a 2’s complement conversion on all 10 bits.
3. Convert the 10-bit binary number to a decimal value.
4. Divide the decimal value by 4.
The upper 8 bits are now the new MSTR_FVOL[7:0] and the two lower bits are MSTR_FVOL[1:0].
MSTR_IVOL[7:0]
0001 1000
0000 0001
0000 0001
0000 0000
0000 0000
1000 0010
1000 0001
1000 0001
0001 0111
1111 1101
1111 1110
1111 1111
1111 1111
Table 7. Master Fractional Volume Settings
MSTR_FVOL(1:0)
00
10
00
01
00
10
00
10
00
00
11
11
11
Volume Setting
-126.00 dB
-126.25 dB
-127.00 dB
+24.00 dB
+23.50 dB
+1.75 dB
+1.00 dB
+0.25 dB
-0.50 dB
-1.00 dB
-1.25 dB
-2.50 dB
0 dB
CS44600
DS633F1
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