yd2149 Wuxi Youda Electronics Co.,Ltd., yd2149 Datasheet - Page 6

• Manufacturer Part Number: yd2149
• Description: Am/fm 1 Chip Tuner Ic
• Manufacturer: Wuxi Youda Electronics Co.,Ltd.

TWES CIRCUIT
WuXi YouDa Electronics Co., Ltd
YOUDA INTEGRATED CIRCUIT
AM RF IN
FM RF OUT
0.022uF
RF GND
24
1
2k
FM RF IN AM LOW CUT MIX OUT
RF Vcc
23
2
AM RF IN
BPF
22
3
+
VT
FM RF IN
T2
Vin
FM OUT
21
4
330
OSC OUT
AM OUT
YD2149
Vcc
20
5
FM IF IN
0.033uF
Vin
AM IF IN
OSC OUT
19
6
CF1
270
SW8
6 of 7
FM IF IN
ST LED
18
7
CF2
SW1
+
IF REQ
17
GND
8
2SC1923
SW7
IF OUT
DET OUT
AGC
16
8V
9
+
+
MPX IN
QUAD
+
15
10
CR
2SC1815
R-OUT
MPX IN
LPF1
14
11
2.4k
5V
Website: www.e-youda.com
SW2
+
+
SW5
L-OUT
LPF2
13
12
DET OUT
YD2149
SW4
LPF
SW3
+
4.7k
Vcc