UPC8126K NEC, UPC8126K Datasheet - Page 14

• Manufacturer Part Number: UPC8126K
• Description: 900 MHz BAND DIRECT QUADRATURE MODULATOR IC FOR DIGITAL MOBILE COMMUNICATION SYSTEMS
• Manufacturer: NEC

TEST CIRCUIT 3
Quadrature modulator block
14
In this case, pin 20 to 27 should be opened or grounded.
Signal Generator
23
24
25
26
27
28
LOinb
33 pF
22
1
21
2
300
Preliminary Data Sheet P13488EJ1V0DS00
33 pF
2 pF
20
3
6.8 nH
19
4
LOin
MODout
1 000 pF
0.22 F
33 pF
100 pF
Spectrum Analyzer
or Network Analyzer
18
5
17
6
V
CC
16
7
2 (MOD)
V
V
PS
CC
15
1 (MOD)
8
100 pF
1 000 pF
0.22 F
3 (MOD)
14
13
12
11
10
9
Voltage Source
Pulse Pattern Generator
Voltage
Source
Voltage
Source
Qin
Qb
Ib
Iin
I/Q Signal
Generator
PC8126K