TDA7514 STMicroelectronics, TDA7514 Datasheet - Page 37

• Manufacturer Part Number: TDA7514
• Description: SINGLE-CHIP FM/AM TUNER
• Manufacturer: STMicroelectronics

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