hi5731 Intersil Corporation, hi5731 Datasheet - Page 14

• Manufacturer Part Number: hi5731
• Description: 12-bit, 100 Msps, High Speed D/a Converter
• Manufacturer: Intersil Corporation

BASEBAND
STREAM
BIT
CONTROLLER
ENCODER
FIGURE 29. PSK MODULATOR USING THE HI5731 AND THE HSP45102 12-BIT NCO
14
CONTROL
40MSPS
I
Q
BUS
CLK
16
19
20
18
17
12
14
13
10
11
9
P1
P0
LOAD#
TXFR#
ENPHAC#
SEL_L/M#
SD
SFTEN#
MSB/LSB#
U1
CLK
SCLK
HSP45102
-5.2V_D
OUT11
OUT10
OUT9
OUT8
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0
HI5731
28
27
26
25
24
23
6
5
4
3
2
1
10µH
L1
-5.2V_D
R4
50
V
CC
-5.2V_A
16
10
15
28
17
18
11
12
1
2
3
4
5
6
7
8
9
DV
D11 (MSB)
D10
D9
D8
D7
D6
D5
D4
D3
D2
DGND
DGND
DV
D1
D0 (LSB)
U2
CLK
CC
EE
HI5731
CNTRL OUT
CNTRL IN
REF OUT
10µH
RSET
ARET
AV
AV
L2
I
I
OUT
OUT
SS
EE
21
20
24
25
26
23
19
27
22
-5.2V_A
C2
C1
FILTER
976
R1
R2
R3
64
64
0.1µF
0.01µF
TO RF
UP-CONVERT
STAGE
-5.2V_A
-5.2V_A