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IC
PLL1700E_2K (BURR-BROWN)
PROGRAMMABLE DUAL PLL CLOCK GENERATOR
—TOP VIEW—
ML/SR0
1
20
MODE
2
19
V
3
18
CC
GND
4
17
XT2
5
16
XT1
6
15
GND
7
14
V
8
13
CC
RSV
9
12
MCKO
10
11
INPUTS
MC/FS1
: BIT CLOCK INPUT FOR CONTROL DATA (SOFTWARE MODE)/
SAMPLING FREQUENCY GROUP CONTROL (HARDWARE MODE)
MD/FS0
: DATA INPUT FOR CONTROL DATA (SOFTWARE MODE)/
SAMPLING FREQUENCY GROUP CONTROL (HARDWARE MODE)
ML/SR0
: LOAD STROBE INPUT FOR CONTROL DATA (SOFTWARE MODE)/
DOUBLE SAMPLING RATE CONTROL (HARDWARE MODE)
MODE
: MODE SELECT FOR CONTROL DATA (H: HURRIER MODE, L: SOFTWARE MODE)
RST
: RESET (L RESET)
XT1
: 27MHz CRYSTAL OSCILLATOR OR EXTERNAL CLOCK INPUT
OUTPUTS
MCKO
: 27MHz MASTER CLOCK OUTPUT
MCKO
: 27MHz MASTER CLOCK OUTPUT (INVERTED)
SCKO1
: SYSTEM CLOCK OUTPUT1 (33.8688MHz)
SCKO2
: SYSTEM CLOCK OUTPUT 2 (256 fs)
SCKO3
: SYSTEM CLOCK OUTPUT 3 (384 fs)
SCKO4
: SYSTEM CLOCK OUTPUT 4 (768 fs)
XT2
: 27MHz CRYSTAL OSCILLATOR, CONNECTED TO GROUND AT EXTERNAL CLOCK
OTHER
RSV
: RESERVED (MUST BE OPEN)
FREQUENCY CONTROL
COUNTER N
DATA
ROM
COUNTER M
COUNTER M
OSC
COUNTER N
5
6
11
10
MCKO
XT2
XT1
MCKO
SSM-2142SR (AD)
BALANCED LINE DRIVER
—TOP VIEW—
NC
1
16
NC
2
15
_ FORCE
3
14
_ SENSE
4
13
GND
5
12
V IN
6
11
NC
7
10
NC
8
9
11-10
MC/FS1
MD/FS0
RST
SCKO3
V
CC
GND
SCKO2
SCKO4
SCKO1
MCKO
PLL2
PHASE DETECTOR
AND
VCO
LOOP FILTER
PLL1
PHASE DETECTOR
AND
VCO
LOOP FILTER
12
SCKO1
NC
NC
+ FORCE
+ SENSE
V
CC
V
EE
NC
NC
TC7WH123FU(TE12R) (TOSHIBA)
MONOSTABLE MULTIVIBRATOR
—TOP VIEW—
A
1
B
2
CLR
3
GND
4
INPUTS
OUTPUTS
A
CLR
B
Q
1
1
x
0
1
0
x
1
1
0
0
1
0
1
x
x
0
0
TC7WH157FU(TE12R) (TOSHIBA)
2-CHANNEL MULTIPLEXER
—TOP VIEW—
A
1
IN
B
2
IN
Y
3
OUT
GND
4
SCKO2
14
COUNTER Q
COUNTER P
13
17
SCKO4
SCKO3
6
7
8
V
C
R
/C
CC
X
X
X
1
A
5
2
Q
B
7
R
/C
X
X
CLR
6
C
X
3
5
Q
NOTE
OUTPUT ENABLE
INHIBIT
INHIBIT
OUTPUT ENABLE
0
: LOW LEVEL
OUTPUT ENABLE
1
: HIGH LEVEL
RESET
x
: DON'T CARE
INPUTS
OUTPUTS
EN
Y
8
V
G1
A
B
Y
CC
1
x
x
x
0
EN
7
0
0
0
x
0
IN
0
0
1
x
1
6
G1
0
1
x
0
0
IN
0
1
x
1
1
5
Y
OUT
0
: LOW LEVEL
1
: HIGH LEVEL
x
: DON'T CARE
1
1
0
1
0
DSR-1500/1500P
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