參數(shù)資料
型號(hào): MC1650
廠商: Motorola, Inc.
英文描述: Dual A/D Converter
中文描述: 雙A / D轉(zhuǎn)換
文件頁數(shù): 5/11頁
文件大?。?/td> 157K
代理商: MC1650
MC1650 MC1651
MOTOROLA
MECL Data
DL122 — Rev 6
4–338
FIGURE 1 — SWITCHING TIME TEST CIRCUIT @ 25
°
C
Vin to Channel A
VR1, VR2, VR3
P1
P2
P3
VX
P4
+
VCC =
+7.0 Vdc
VXX =
+2.0 Vdc
Vout to
Channel B
0.1
μ
F
0.1
μ
F
10
7 1
VCC Gnd
16
VEE
0.1
μ
F
VEE =
–3.2 Vdc
D
Q
Q
C
D
Q
C
Q
Note:All power supply and logic levels are shown shifted 2.0 volts positive.
50 ohm termination to ground located in each scope channel input.
All input and output cables to the scope are equal lengths of 50 ohm coaxial cable.
+
V — INPUT TO OUTPUT
CLOCK TO OUTPUT
Vin
Q
50%
tpd
50%
tpd
90%
t+
10%
50%
t –
VIH
VR
VIL
Test pulses: t+, t– = 1.5
±
0.2 ns (10% to 90%)
f = 5.0 MHz
50% Duty Cycle
P1
Vin
30 ns
P4
C
Q
50%
tpd
50%
40 ns
50%
30 ns
30 ns
40 ns
30 ns
tpd
+0.31 V
+1.11 V
VIH + 2.1 V
VR + 2.0 V
VIL + 1.9 V
P4: t+, t– = 1.5
±
0.2 ns.
FIGURE 2 — SWITCHING AND PROPAGATION WAVEFORMS @ 25
°
C
The pulse levels shown are used to check ac parameters
over the full common-mode range.
Coax
P1
P2
P3
TEST PULSE LEVELS
VIL
VR
VIH
MC1650
MC1651
MC1650
MC1651
MC1650
MC1651
+2.1 V
+2.1 V
+5.0 V
+4.5 V
–0.3 V
–0.8 V
+2.0 V
+2.0 V
+4.9 V
+4.4 V
–0.4 V
–0.9 V
+1.9 V
+1.9 V
+4.8 V
+4.3 V
–0.5 V
–1.0 V
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