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参数资料
| 型号： | MPC961CAC |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | IC BUFFER ZD 1:18 PLL 32-LQFP |
| 标准包装： | 250 |
| 类型： | 零延迟缓冲器 |
| PLL： | 是 |
| 输入： | LVCMOS |
| 输出： | LVCMOS |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:17 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 200MHz |
| 除法器/乘法器： | 无/无 |
| 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： | 托盘 |
MPC961C Data Sheet
LOW VOLTAGE ZERO DELAY BUFFER
MPC961C REVISION 5 AUGUST 17, 2009
8
2009 Integrated Device Technology, Inc.
Where Rthja is the thermal impedance of the package (junction to
ambient) and TA is the ambient temperature. According to Table 9,
the junction temperature can be used to estimate the long-term
device reliability. Further, combining equation 1 and equation 2
results in a maximum operating frequency for the MPC961C in a
series terminated transmission line system.
TJ,MAX should be selected according to the MTBF system
requirements and Table 9. Rthja can be derived from Table 10. The
Rthja represent data based on 1S2P boards, using 2S2P boards will
result in a lower thermal impedance than indicated below.
If the calculated maximum frequency is below 200 MHz, it
becomes the upper clock speed limit for the given application
conditions. The following two derating charts describe the safe
frequency operation range for the MPC961C. The charts were
calculated for a maximum tolerable die junction temperature of
110
°C, corresponding to an estimated MTBF of 9.1 years, a supply
voltage of 3.3 V and series terminated transmission line or capacitive
loading. Depending on a given set of these operating conditions and
the available device convection a decision on the maximum
operating frequency can be made. There are no operating frequency
limitations if a 2.5 V power supply or the system specifications allow
for a MTBF of 4 years (corresponding to a max. junction temperature
of 120
°C).
Table 10. Thermal Package Impedance of the 32ld LQFP
Convection, LFPM
Rthja (1P2S board), K/W
Still air
80
100 lfpm
70
200 lfpm
61
300 lfpm
57
400 lfpm
56
500 lfpm
55
180
Figure 9. Maximum MPC961C Frequency, VCC = 3.3 V,
MTBF 9.1 Years, Driving Series Terminated
Transmission Lines
Figure 10. Maximum MPC961C Frequency,
VCC = 3.3 V, MTBF 9.1 Years, 4 pF Load per Line
200
160
140
120
0
500
400
300
200
100
IFPM, CONVECTION
0
OPER
ATIN
G
FRE
Q
UENCY
(MHz
) 180
20
TA = 85°C
fMAX (AC)
0
500
400
300
200
100
IFPM, CONVECTION
OPER
ATIN
G
FRE
Q
UENCY
(MHz
)
TA = 75°C
TA = 85°C
fMAX (AC)
Safe operation
40
60
80
100
200
160
140
120
20
40
60
80
100
Figure 11. TCLK MPC961C AC Test Reference for VCC = 3.3 V and VCC = 2.5 V
Pulse
Generator
Z = 50
RT = 50
ZO = 50
RT = 50
ZO = 50
MPC961C DUT
VTT
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