ak4140 AKM Semiconductor, Inc., ak4140 Datasheet - Page 20

• Manufacturer Part Number: ak4140
• Description: Digital Btsc Decoder
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0547-E-01
Pilot/SAP/Noise Detection On/Off Hysteresis Range
NTHR1 bit
NHYS1 bit
STHR1 bit
PHYS1 bit
SHYS1 bit
Table 13. Noise(5fH) Hysteresis Level Control
Table 10. Noise(5fH) Threshold Level Control
Table 12. SAP(5fH) Hysteresis Level Control
0
0
1
1
0
0
1
1
0
0
1
1
Table 11. Pilot(fH) Hysteresis Level Control
0
0
1
1
0
0
1
1
Table 9. SAP(5fH) Threshold Level Control
NTHR0 bit
NHYS0 bit
STHR0 bit
PHYS0 bit
SHYS0 bit
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
- 20 -
Hysteresis Level (typ)
Hysteresis Level (typ)
Hysteresis Level (typ)
Threshold Level (typ)
Threshold Level (typ)
0dB= full scale of 5fH SAP carrier, BW=5fH+/-10kHz
0dB= full scale of 5fH SAP carrier, BW=5fH+/-10kHz
-13dB (default)
2.5dB (default)
-9dB (default)
6dB (default)
4dB (default)
-13.5dB
-4.5dB
-20dB
6.5dB
12dB
-1dB
-2dB
-7dB
3dB
9dB
2dB
6dB
8dB
1dB
4dB
0dB= full scale of 5fH SAP carrier
0dB= full scale of 5fH SAP carrier
0dB= full scale of 1fH Pilot tone
[AK4140]
2007/03