ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 80

• Manufacturer Part Number: ak4141
• Description: Nicam/a2/eia-j Digital Stereo Decoder
• Manufacturer: AKM Semiconductor, Inc.

CR1Q[15:0]: Carrier 1 quality.
MS0952-E-00
Addr
6AH
6BH
This is the ratio of CR1M to CR1N. This is an approximation of S/N ratio.
When reading these registers, always read the high byte first. The low byte is only updated when the high byte is
read. This ensures that the values read from the two registers come from the same 16-bit word.
CR1Q =
Carrier 1 Signal Quality 1
Carrier 1 Signal Quality 0
CR1M
Register Name
Default
R/W
/
CR1Q [15:0]
CR1N
0xFFFF
0x4000
0x1000
0x0400
0x0100
0x0040
0x0010
0x0004
0x0001
x 2
6
(unsigned)
Table 98. Carrier 1 quality
Ratio of CR1M to CR1N (dB)
D7
- 80 -
<-36
>60
-12
-24
48
36
24
12
D6
0
D5
CR1Q[15:8]
CR1Q[7:0]
00000000
D4
RD
D3
D2
D1
[AK4141]
2008/05
D0