1-21
RC-BZ5LB/BZ5RD
RC-BZ6BU
5
2
1
3
7
8
20
21
22
23
24
19
18
17
16
AM
OSC
FM
OSC
AM
RF IN
FM
RF OUT
RF
Vcc
OSC
OUT
ST
LED
IF
REQ
DET
OUT
15
14
13
FM
OSC
AM
OSC
BUFF
BUFF
ST
LEVEL
DET
1 / 8
IF
BUFF
AF
BUFF
SW
IF
REQ
AF
VCO
DIVIDE
DECODE
ST / MO
FM / AM
MUTE
AGC
AM
DET
FM
DET
FM
MIX
AMIF
FMIF
AM
MIX
FMRF
4
6
9
10
11
12
MPX
IN
LPF1
LPF2
AGC
QUAD
R-OUT
L-OUT
AM
IF IN
FM
IF IN
GND
RF
GND
FM
RF IN
AM
LOW CUT
MIX
OUT
Vcc
TA2104AN (IC1) : AM/FM 1 chip tuner IC
2.Pin function
1.Terminal layout & Block diagram
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
RF GND
FM RF IN
AM LOW CUT
MIX OUT
Vcc
AM IF IN
FM IF IN
GND
AGC
QUAD
R-OUT
L-OUT
LPF2
LPF1
MPX IN
DET OUT
IF REQ
ST LED
OSC OUT
AM OSC
FM OSC
AM RF IN
RF Vcc
FM RF OUT
RF Stage ground
FM RF Input
AM Low Frequency Cut Filter External Component
Mixer Output
Power Supply
AM IF Amplifier Input
FM IF Amplifier Input
Ground
AM AGC External Capacitor
FM Quadrature Detector Terminal
Audio output CH-R
Audio output CH-L
LPF Terminal for Phase Detector / AM, FM Switching
LPF Terminal for Synchronous Detector / VCO Stop
FM MPX Input
AM/FM Detector Output
IF Output / IF Request control
FM Stereo Indicator Output
Local Oscillator Output
AM Oscillator
FM Oscillator
AM RF Input
RF Stage Vcc
FM RF Amplifier Output
Pin
1
2
3
4
5
6
7
8
9
Pin Name
Function