TDA7514 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA7514 Datasheet PDF : 74 Pages
| |||
TDA7514
Table 28. SUBADDRESS 13: AM Fast AGC1, AM Ultra NARROW BAND AGC, Weather Band Gain
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
AM fast AGC1
0 off (R =100 Kohm)
1
on (R = 9 Kohm)
AM Narrow AGC disable
0
NAGC on
1
NAGC off
AM Ultra Narrow Band AGC Threshold
@ IF2AMPin
@ SG
0
0
0
0
76
67
0
0
0
1
86
77
0
0
1
0
92
83
0
0
1
1
90
81
0
1
0
0
75
66
0
1
0
1
85
76
0
1
1
0
88
79
0
1
1
1
78
69
1
0
0
0
74
65
1
0
0
1
83
74
1
0
1
0
90
81
1
0
1
1
79
70
1
1
0
0
73
64
1
1
0
1
82
73
1
1
1
0
87
78
1
1
1
1
77
68
Weather Band audio gain boost
0
boost off (std audio gain)
1
boost on (audio gain x 15 = +23.5 dB)
Table 29. SUBADDRESS 14: Soft Mute, Adjacent Channel Mute
MSB
LSB
FUNCTION
D7 D6 D5 D4 D3 D2 D1 D0
Soft mute start/stop point (FM, AM) (*)
0
0 VSmeterL=0,
VSmeterH=0.6
0
1 VSmeterL=0.2,
VSmeterH=0.6
1
0 VSmeterL=0.5,
VSmeterH=1.4
1
1 VSmeterL=1.0,
VSmeterH=1.4
Adjacent channel mute start/stop point (FM)
0
VAdjChL=1,
VAdjChH=4.5
1
VAdjChL=2
VAdjChH=4.5
Full soft mute level
0
0
0
-4dB
-
-
-
(step = -2.5dB)
1
1
1
-21.5dB
Full adjacent channel mute level
0
0
0dB
0
1
-6dB
1
0
-9dB
1
1
-12dB
(*) Cfr. byte 20 for dependancy of ISS Smeter threshold on byte 14 programming
37/74
Share Link: 