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參數(shù)資料
| 型號(hào)： | SY89850U |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| 中文描述： | 單電源RS232C接口線路驅(qū)動(dòng)器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收）） |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 561K |
| 代理商： | SY89850U |
Micrel, Inc.
SY89850U
LVPECL Output DC Electrical Characteristics
(6)
V
CC
= +2.5V ±5% or +3.3V ±10%; T
A
= –40°C to +85°C; R
L
= 50
to V
CC
–2V, unless otherwise stated.
February 2005
4
M9999-020305
hbwhelp@micrel.com
or (408) 955-1690
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
CC
Output High Voltage
Q, /Q
V
CC
–1.145
V
CC
–0.895
V
V
OL
Output Low Voltage
Q, /Q
V
CC
–1.945
V
CC
–1.695
V
V
OUT
Output Voltage Swing
Q, /Q
See Figure 1a.
550
800
mV
V
DIFF_OUT
Differential Output Voltage Swing
Q, /Q
See Figure 1b.
1100
1600
mV
Note:
6.
AC Electrical Characteristics
(7)
V
CC
= +2.5V ±5% or +3.3V ±10%; T
A
= –40°C to +85°C; R
L
= 50
to V
CC
–2V, unless otherwise stated.
The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
Symbol
Parameter
Condition
Min
Typ
Max
Units
NRZ Data
3.2
Gbps
f
MAX
Maximum Operating Frequency
V
OUT
≥
400mV Clock
V
IN
≥
100mV
4
GHz
t
pd
Propagation Delay
IN-to-Q
180
260
360
ps
t
pd
Tempco
Differential Propagation Delay
Temperature Coefficient
115
fs/°C
Note 8
1
ps
(rms)
ps
(pp)
t
JITTER
Data
Random Jitter (RJ)
Deterministic Jitter (DJ)
Note 9
10
Note 10
1
ps
(rms)
ps
(pp)
Clock
Cycle-to-Cycle Jitter
Total Jitter (TJ)
Note 11
10
t
r
, t
f
Rise/Fall Time (20% to 80%)
Q, /Q
At full output swing.
50
100
160
ps
Notes:
7.
8.
9. Deterministic jitter is measured at 2.5Gbps and 3.2Gbps, with both K28.5 and 2
23
–1 PRBS pattern.
10. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, T
n
–T
n-1
where T is the time between rising edges of the
output signal.
11. Total jitter definition: with an ideal clock input of frequency < f
MAX
, no more than one output edge in 10
12
output edges will deviate by more
than the specified peak-to-peak jitter value.
The circuit is designed to meet the AC specifications shown in the above table after thermal equilibrium has been established.
Random jitter is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps and 3.2Gbps.
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