ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 79

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

CR1M [15:0]
CR1N [15:0]
MS0952-E-00
Addr
Addr
66H
67H
68H
69H
Carrier 1 average magnitude.
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.
Carrier 1 average magnitude noise. An FM carrier has a constant magnitude. This is a measure of its average
difference from its average.
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.
CR1M
CR1N
Carrier 1 Average Magnitude 1
Carrier 1 Average Magnitude 0
[15:0] = Portion of full scale x 1.647
= Portion of full scale x 1.647
Carrier 1 Magnitude Noise 1
Carrier 1 Magnitude Noise 0
Register Name
Register Name
Default
Default
R/W
R/W
CR1M
CR1N[15:8]
0xAD9B
0xAD9B
0x7AE8
0x2B9C
0x1EDF
0x15DB
0x2B9C
0x15DB
0x3D99
0x0AF4
0x057D
0x0AF4
0x057D
0x07C1
0x02C0
0x00B1
0x002C
0x000B
0x5702
0x0F79
0x5702
0x0161
0x0059
0x0016
[15:0]
Table 97. Carrier 1 average magnitude noise
Table 96. Carrier 1 average magnitude
Average Carrier Magnitude Noise (dBFS)
2
x 2
Average Carrier Magnitude (dBFS)
14
2
(unsigned)
* 2
D7
D7
14
(unsigned)
- 79 -
-12
-15
-18
-21
-24
-27
-30
-12
-18
-24
-30
-36
-42
-48
-54
-60
-66
-72
-3
-6
-9
-6
D6
D6
0
0
D5
D5
CR1M[15:8]
CR1N[15:8]
CR1M[7:0]
CR1N[7:0]
00000000
00000000
D4
D4
RD
RD
D3
D3
D2
D2
D1
D1
[AK4141]
2008/05
D0
D0