Kenwood TM-321A Service Manual page 11
220mhz fm transceiver
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Also See for TM-321A:
- Instruction manual (60 pages) ,
- Instruction manual (22 pages) ,
- Instruction manual (29 pages)
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321A
SEMICONDUCTOR
DATA
Electronic volume LC7532M
(VOL
IC1)
Electric
characteristics
Item
Symbol
Conditions
Specifications
Unit
Min.
Typ
Max
VDD=3V,
RL=50kQ2,
THD1
f=1kHz, VR MAX,
0.1
0.5
%
VIN=-20dBV
High-frequency distortion
VDD=2.1V, RL=50kQ,
THD2
f=1kHz, VR MAX,
0.3
1.0
%
VIN=-20dBV
Output
in
low-power mode
X OUT
At
OdBm input
:
f=1kHz,RL=51kQ
-95
dB
RIN
UP,DN,CE
100
400
kQ
Input impedance
IDD(1) VDD=3V
when operating
0.035
mA
Current consumption
IDD
(2)
VDD=3V,
CE="L"
BMA
60
1
4
®
Block
diagram
INIT
IN
CR
CE
SW15
6)
C.T
counter
UP/DN
4to16
decoder
sw
osc
10
swo
Reset
UP
11
DN
9
69
3
VM
15
VDD
VSS
12
321A
SEMICONDUCTOR
DATA
Electronic volume LC7532M
(VOL
IC1)
Electric
characteristics
Item
Symbol
Conditions
Specifications
Unit
Min.
Typ
Max
VDD=3V,
RL=50kQ2,
THD1
f=1kHz, VR MAX,
0.1
0.5
%
VIN=-20dBV
High-frequency distortion
VDD=2.1V, RL=50kQ,
THD2
f=1kHz, VR MAX,
0.3
1.0
%
VIN=-20dBV
Output
in
low-power mode
X OUT
At
OdBm input
:
f=1kHz,RL=51kQ
-95
dB
RIN
UP,DN,CE
100
400
kQ
Input impedance
IDD(1) VDD=3V
when operating
0.035
mA
Current consumption
IDD
(2)
VDD=3V,
CE="L"
BMA
60
1
4
®
Block
diagram
INIT
IN
CR
CE
SW15
6)
C.T
counter
UP/DN
4to16
decoder
sw
osc
10
swo
Reset
UP
11
DN
9
69
3
VM
15
VDD
VSS
12
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