- 您现在的位置：买卖IC网 > Sheet目录467 > LA1787M-MPB-E (ON Semiconductor)IC CAR RADIO TUNER 64QFP
LA1787M
Detector output Pin 36 AC level
MPX OUT
R 36-37
Open
10 k ?
Vo
330 mVrms
280 mVrms
QDIN
235 mVrms
200 mVrms
? Band Muting Adjustment Procedure
The muting bandwidth can be modified as shown in figure 31 with the resistor R BW between pin 34 and 37.
280
R BW — Muting Bandwidth
RBW
Fig.31
240
1 μ F
+
+
0.47 μ F
200
10 k ?
SA208
Sumida
160
120
80
40
37 36 35 34
ANT IN 98 MHz 100 dB μ
7 100
10
0
1.0
2 3 5 7 2 3 5
Resistor RBW between pins 34 and 37 — k ?
2
3. AM
? AM AGC system
The LA1787M RF AGC circuit takes its input from three sources: the WIDE AGC pin (pin 46), the MIDDLE
AGC pin (pin 49) and NARROW AGC. There is also an IF AGC circuit.
RW
1st MIX 10.7MHz CF
2nd MIX 450kHz CF
IF Amp.
DET
RF
62
49
52
31
VCC
42
1st OSC
X'tal
240 k ?
VCC
46
Middle AGC IN
Amp.
IF AGC
44
2.2 μ F
Narrow AGC IN
Wide AGC IN
ANT
damping
57
RF AGC
48
+
47 μ F
+
3.3 μ F
Fig. 32
A11762
No. 6655-37/54
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
LAH 100-P
SENSOR CURRENT 100A TH
LAH 25-NP
SENSOR CURRENT 25A TH
LAH 50-P
SENSOR CURRENT 50A TH
LAX 100-NP
SENSOR CURRENT 100A 12V TH
LB01KW01-5F24-JF
NDICATOR LED SQUARE FOR LB SER
LC01707PLF-TLM-H
IC FM DATA TUNER AUTO 44-VQFN
LC104R2K
MINITHERMISTORS 100K BETA 4140K
LC1AWT
LAMP LC SERIES WHITE
相关代理商/技术参数
LA1787NM
制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip Car Radio System IC
LA1787NM_09
制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip Car Radio System IC
LA1787NM-MPB-E
制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Trays 制造商:ON Semiconductor 功能描述:FTRAY / ANALOG CAR RADIO TUNER
LA1787NM-TLM-E
制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / ANALOG CAR RADIO TUNER
LA17B-10H
制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA17B-5H
制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA1800
制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:FM/AM Single-Chip Radio
LA1805
制造商:Panasonic Industrial Company 功能描述:IC