Kenwood TR-2600A - Circuit Description

CIRCUIT DESCRIPTION
6dB bandwidth
item
Rating
Guaranteed attenuation
{Within 455+ 100kHz)
Center frequency of 6dB bandwidth
40dB bandwidth
Ripple (within 455+1.5kHz)
1.5dB
Within 455kHz21.SkHz
+7.5kHz or more
+15kHz or less
or less
—
27dB or more
6dB or less
Vee
10.245MHz
Input and output impedance
Table
2
Ceramic
filter
(L72-0335-05)
(RX
unit
F2)
em:
(7)
fe RT
| HEp7—+—-@) 0
| Log) |
{
l
Squelch Trigger
with Hysteresis
1.6kQ
Table 3 BA526 Max. rating
Poss
Filter Amp,
4
Item
Symbol!
Condition
ain
te
Mex]
Unit
l
Current
W/O
signal
I
lcc
[VIN
=0V
-
12
T2
Voltage
gain
Gvc
sf
RNF
#479,
VIN=Z.5mV|
48
|
52
Max
output
PO
MAX]
VIN
=
25mV
600
|700|
—
Rated
output
Po
|
T.H.D
=
10%
360_|430
Output
noise
voitage
VNO
Rg
=
02
~
Io
TMB:
neat
Distortion
T.H.0
|
PO
=
50mw
“af
Input
impedance
1kHz,
Po
=
SOmMW
Table
4
BA526
Electrical
characteristic
@ Power supply circuit
The
C5
line
(common
5V)
is
a
regulated
power
supply
con-
sisting
of
Q35
:
LVC517
and
Q21
:
2SB698
and
is
derived
from
the
CB
(common
B+)
line.
O35
is
a
compact
3-pin
regulator
and
Q21
is
a
current
booster.
Rating
Topr | —20~+60
[ -30~ +125
| 15
100
{tem
Operating temp.
Stage temp.
Input current
Output current
Power consumption
L
Fig. 2 BA526 Equivalent circuit (RX unit Q8)
+~—
o7
a Rating
Item
Symbol
Condition
Caescs
St.
|
Min.
Input
current
li
Vi
=9.0V,
lo
=OmA
0.5
-
25
Output
voltage
Vo
[Viz90V.lo=20mA__
|
4.8
|
6.0
|
5.2
Output
voltage
eat
i
=
~20~
+60°C
—
foo!
-
|
re
temp.
coefficient
Vi
=9.0V,
lo
=
20mA
_|
Inout
regulation
A
V02
|
Vi=
8.6~10V,
lo
=
30mMA
tS
Load
regulation
A
Vo03
|
Vi=9.0V,
lo
=
0~30mA
LL
Ripple
ae
Resin
Vi
=
9.0V,lo
=
20MA
50
=
compressibility
#=100Hz,
1V
P—P
Table 6 LVC517 Electrical characteristic
een we