UPC8125GR NEC [NEC], UPC8125GR Datasheet - Page 4

• Manufacturer Part Number: UPC8125GR
• Description: UP-CONVERTER WITH AGC FUNCTION QUADRATURE MODULATOR IC FOR DIGITAL MOBILE COMMUNICATION SYSTEMS
• Manufacturer: NEC [NEC]

UPC8125GR
APPLICATION CIRCUIT
APPLICATION CIRCUIT
BPF at fMODout = 250 MHz
(PHS)
L1 = 47 nH
TX
RX
SW
100pF
1000pF
1000pF
1000pF
1000pF
PA
C1=7pF
10
1
2
3
4
5
6
7
8
9
Vcc (MOD)
Filter1
Filter2
I
Ib
Q
Qb
Lo1in
Lo1inb
GND
Filter
Vcc (UP-CON)
N
PLL
Lo2inb
VAGC
RFout
Lo2in
GND
GND
GND
GND
Vps
UPC8125GR
1000pF
18
14
12
20
19
17
16
15
13
11
0
90
100pF
C2=3pF
C3 = 3pF
1000pF
Zo = 50
Zo = 50
Matching circuit
at fRFout = 190 MHz
DEMO
1k
PLL
R
Matching circuit
at fLo2in = 1650 MHz
AGC
100pF
L2 = 100nH
100pF
Q
I
Q
I