RF9958 Datasheet, PDF (8/12 Pages) RF Micro Devices – CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER

RF9958
Application Schematic
Mode Select
1 MODE
VCC2 28
10 nF
V_CC
Q Signal
Reference
I Signal
10 nF
2 Q SIG
3 Q REF
4 I REF
5 I SIG
GC 27
DEC 26
10 nF
MOD OUT+ 25
37 kΩ
1 nF
MOD OUT- 24
Gain Control
V_CC
18 pF
82 nH _{10 nF}
82 nH
5
6 GND1
GND2 23
18 pF
V_CC
IF Filter,
DC Blocked
7 VCC1
MIX IN+ 22
10 nF
LO1/FM In
8 LO1+
MIX IN- 21
Power Down 1
1 nF
9 LO1-
1 nF
10 BG OUT
10 nF
11 VCC3
1 nF
12 GND1
13 PD1
LO2- 20
100 pF
LO2+ 19
100 pF
DEC 18
1000 pF
RF OUT 17
V_CC
L1
GND2 16
C1
LO2 In
RF Out
100 pF
14 VCC4
PD2 15
1 nF
Power Down 2
5-100
Rev B11 010720