TDA7514 STMicroelectronics, TDA7514 Datasheet - Page 37
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TDA7514
Manufacturer Part Number
TDA7514
Description
SINGLE-CHIP FM/AM TUNER
Manufacturer
STMicroelectronics
Datasheet
1.TDA7514.pdf
(74 pages)
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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
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81
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