HFA3783 Datasheet, PDF (4/34 Pages) Intersil Corporation – I/Q Modulator/Demodulator and Synthesizer

Application Circuit
HFA3783
FROM MAC (CAL+ EN CTRL)
TX_VAGC
619
RX_VAGC
976
IF_DET
IDAC
7 BITS
IDAC
7 BITS
1-BIT
DET
RX”I”
ADC
6 BITS
SAW
SAWTEK
855653L1
V_CC
10µ
0.01
0.01
100p
100p
100p
C_S
C_S ^2K
L_P
L_P
1000p
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
LO
31
7
30
8
Σ
29
9
28
10
27
11
SYNTH 0/90
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
1000p
1000p
0.1
0.1
49.9
RX”Q”
ADC
6 BITS
68p
536
124
TX”I”
124
DAC
6 BITS
1.2V REF IN
0.1
56p
100p
0.1
100p
68p
536
124
TX”Q”
124
56
RF
3.92K
0.22
VT ^VCO
PANASONIC
ENFV25F80
3900pF
2K
DAC
6 BITS
HFA3861
REF FREQ
(SINUSOIDAL)
FROM MAC (PLL CTRL)
VCO_V_CC
0.1
10µ
4