参数资料
型号: MPC9448ACR2
厂商: IDT, Integrated Device Technology Inc
文件页数: 8/13页
文件大小: 0K
描述: IC CLOCK BUFFER MUX 1:12 32-LQFP
标准包装: 2,000
类型: 扇出缓冲器(分配),多路复用器
电路数: 1
比率 - 输入:输出: 1:12
差分 - 输入:输出: 是/无
输入: LVCMOS,LVPECL
输出: LVCMOS
频率 - 最大: 350MHz
电源电压: 2.375 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-TQFP(7x7)
包装: 带卷 (TR)
MPC9448 REVISION 7 DECEMBER 21, 2012
4
2012 Integrated Device Technology, Inc.
MPC9448 Data Sheet
3.3V/2.5V LVCMOS 1:12 CLOCK FANOUT BUFFER
Table 6. AC Characteristics (VCC = 3.3 V ± 5%, TA = -40°C to +85°C)(1)
1. AC characteristics apply for parallel output termination of 50
to VTT.
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
fref
Input Frequency
0
350
MHz
fMAX
Maximum Output Frequency
0
350
MHz
VPP
Peak-to-Peak Input Voltage
PCLK
400
1000
mV
LVPECL
VCMR(2)
2. VCMR (AC) is the crosspoint of the differential input signal. Normal AC operation is obtained when the crosspoint is within the VCMR range
and the input swing lies within the VPP (AC) specification. Violation of VCMR or VPP impacts tPLH/HL and tSK(PP).
Common Mode Range
PCLK
1.3
VCC – 0.8
V
LVPECL
tP, REF
Reference Input Pulse Width
1.4
ns
tr, tf
CCLK Input Rise/Fall Time
1.0(3)
3. Violation of the 1.0 ns maximum input rise and fall time limit will affect the device propagation delay, device-to-device skew, reference input
pulse width, output duty cycle and maximum frequency specifications.
ns
0.8 to 2.0 V
tPLH/HL
Propagation Delay
PCLK to any Q
CCLK to any Q
1.6
1.3
3.6
3.3
ns
tPLZ, HZ
Output Disable Time
11
ns
tPZL, LZ
Output Enable Time
11
ns
tS
Setup Time
CCLK to CLK_STOP
PCLK to CLK_STOP
0.0
ns
tH
Hold Time
CCLK to CLK_STOP
PCLK to CLK_STOP
1.0
1.5
ns
tsk(O)
Output-to-Output Skew
150
ps
tsk(PP)
Device-to-Device Skew
PCLK or CCLK to any Q
2.0
ns
tSK(P)
DCQ
Output Pulse skew(4)
Using CCLK
Using PCLK
Output Duty Cycle
fQ<170 MHz
4. Output pulse skew is the absolute difference of the propagation delay times: | tpLH – tpHL |.
45
50
300
400
55
ps
%
DCREF = 50%
tr, tf
Output Rise/Fall Time
0.1
1.0
ns
0.55 to 2.4 V
Table 7. DC Characteristics (VCC = 2.5 V ± 5%, TA = -40°C to +85°C)
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
VIH
Input high voltage
1.7
VCC + 0.3
V
LVCMOS
VIL
Input low voltage
–0.3
0.7
V
LVCMOS
VPP
Peak-to-peak input voltage
PCLK
250
mV
LVPECL
VCMR(1)
1. VCMR (DC) is the crosspoint of the differential input signal. Functional operation is obtained when the crosspoint is within the VCMR range
and the input swing lies within the VPP (DC) specification.
Common Mode Range
PCLK
1.0
VCC – 0.7
V
LVPECL
IIN
Input current(2)
2. Input pull-up / pull-down resistors influence input current.
300
A
VIN = GND or VIN = VCC
VOH
Output High Voltage
1.8
V
IOH = –15 mA(3)
3. The MPC9448 is capable of driving 50
transmission lines on the incident edge. Each output drives one 50 parallel terminated
transmission line to a termination voltage of VTT. Alternatively, the device drives one 50 series terminated transmission lines at
VCC = 2.5 V.
VOL
Output Low Voltage
0.6
V
IOL= 15 mA(3)
ZOUT
Output impedance
19
ICCQ(4)
4. ICCQ is the DC current consumption of the device with all outputs open and the input in its default state or open.
Maximum Quiescent Supply Current
2.0
mA
All VCC Pins
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