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90
NXR-710
SCHEMATIC DIAGRAM
X57-794 3/8
K
L
M
N
O
SPSD0
SPSCLK0
50C
/16_8PCS
RSSI
33C
50C
33C
LDT
33C
33C
C615
180p
C600
10u
C416
0.01u
C425
0.1u
C613
0.01u
R605
0
C610
0.01u
R402
100
C614
10u20
C421
1000p
L601
10u
R411
47k
C411
1u
1
OUTPUT
2
V+
3
INPUT+
4
INPUT
-
5
V-
R602
100
R405
10k
R401
22
R417
22
1
oUT
A
2
IN-A
3
IN+A
4
VSS
5
IN+B
6
IN-B
7
oUTB
8
VDD
C605
0.01u
R404
0
R452
220k
C606
10u
C424
0.1u
C422
0.1u
C612
0.01u
C413
1u
R420
47
R412
100
1
G1
2
A1
3
Y2
4
GND
5
A2
6
Y1
7
G2
8
VCC
L613
C602
0.1u
R413
0
C410
1000p
R611
100
C417
0.1u
R684
0
R449
330k
C418
1000p
R416
2.2k
R608
100k
IC409
TC75W51FK(F)
1
oUTA
2
IN-A
3
IN+A
4
VSS
5
IN+B
6
IN-B
7
oUTB
8
VDD
R400
220k
L614
C603
0.1u
C601
10u
C401
0.1u
R607
100k
R410
47k
R685
0
C404
10p
C608
0.01u
R606
100k
C400
0.1u
C403
0.1u
C440
0.1u
C423
0.01u
L600
10u
R609
4.7k
C406
0.1u
C402
0.1u
R421
1.8k
C405
0.1u
R613
0
CF400
L72-1028-05
R422
100
C407
1000p
R451
100k
C604
0.1u
R604
100k
R418
22
R453
22
R409
47k
C408
0.1u
C611
0.01u
C419
1000p
R610
0
L602
R403
6.8k
C607
10u
1
RSET
2
CP
3
CPGND
4
AGND
5
RFINB
6
RFINA
7
AVDD
8
REFIN
9
DGND
10
CE
11
CLK
12
DATA
13
LE
14 MUXoUT
15
DVDD
16
VP
L603
10u
R683
0
R408
10k
R407
470k
1
VoUT
2
-VS
3
+IN
4
-IN
5
+VS
C415
0.1u
1
G1
2
A1
3
Y2
4
GND
5
A2
6
Y1
7
G2
8
VCC
R450
56k
C414
1000p
R612
47
R415
0
C412
1000p
R448
330k
1
RF_DEC 2
RF_IN 3
GND1 4
MIX_oUT 5
GND2 6
IF_IN 7
IF_DEC
8 GC_IN
9 IF_oUT
10 RSSI
11 V+2
12 V+1
13 Lo_IN
14 Lo_DEC
R406
22
AGC -->
<-- 450kHz
50C
BUFF & DIFF AMP
BUFFER AMP
AGC
<-- 450kHz
450kHz -->
RSSIOFS -->
VT1 -->
VT2 -->
VT1 -->
VT2 -->
W_/N
VN_/N
VN_/N
W_/N
19.2MHz -->
19.2MHz -->
19.2MHz -->
19.2MHz -->
MO -->
MB -->
MB -->
MO -->
19.2MHz or 10MHz -->
19.2MHz or 10MHz -->
16.8MHz MOD PLL
<-- RSSI
33C
33C
IC400
AD8051ART
IF AMP
IC601
TC7WH126FU-F
BUFFER
IC600
TC7WH126FU-F
BUFFER
2SA1832(GR)F
Q601
DC SW
IC602
ADF4001BRUZ
16.8MHz PLL
IC401
TC75W51FK(F)
BUFFER AMP
IC402
LMC7101BIM5
OP AMP
SSM3K15TE(F)
Q600
DC SW
CN600
LDT
IC403
NJM2287V
IF SYSTEM
3.26V
3.27V
5.04V
3.27V
3.26V
3.17V
3.26V
3.27V
3.17V
1.62V
AW:-72.2dBm
AN:-72.9dBm
VN:-75.6dBm
-88.4dBm
TX-RX UNIT (X57-7940-10)