SPT7870SCU データシートの表示（PDF） - Signal Processing Technologies
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SPT7870SCU Datasheet PDF : 8 Pages
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Figure 2 - Typical Interface Circuit
+A5
-A5.2
Analog
Input
.01
.01
.01
ECL
Differential
Clock Input
**
VCC AGND VEE
DGND
D10
VIN
D9
VT
D8
D7
VM
D6
VB
D5
D4
D3
SPT7870
D2
CLK
D1
CLK
MINV
D0
LINV
Interfacing
Logic
+A5
10 µF
+
-A5.2
10 µF
+
+A5
50 Ω
-D2 V
FB1
-D2
-D5.2
10 µF
10 µF
+
+
-D5.2
+5 V
AGND
-5.2 V
-2 V
DGND -5.2 V
Notes:
1) = Line termination.
2) * = 0.01 µF chip capacitor in parallel with 2.2 µF Tantalum capacitor.
3) Immediate output buffer is highly recommended to optimize the
performance due to reflection.
Figure 3 - SPT7870 Clock Input Equivalent
Circuit
AVCC
(ESD)
26 kΩ
CLK
AGND
(ESD)
(ESD)
6 kΩ
26 kΩ
-1.3 V
52 kΩ
NCLK
(ESD)
VEE
Figure 4 - SPT7870 Digital Outputs
Equivalent Circuit
AGND
DGND
(ESD)
ECL/PECL
OUT
(ESD)
VEE
44
1
C
D
A
B
SPT
PACKAGE OUTLINE
AB
44L Cerquad
SYMBOL
A
B
C
D
E
F
G
H
INCHES
MIN
MAX
0.550 typ
0.685
0.709
0.037
0.041
0.016 typ
0.008 typ
0.027
0.051
0.006 typ
0.080
0.150
MILLIMETERS
MIN
MAX
13.97 typ
17.40
18.00
0.94
1.04
0.41 typ
0.20 typ
0.69
1.30
0.15 typ
2.03
3.81
0 - 5°
E
7
H
G
F
SPT7870
9/8/98
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