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参数资料
| 型号： | MPC9774FAR2 |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 8/14页 |
| 文件大小： | 0K |
| 描述： | IC PLL CLK GEN 1:14 3.3V 52-LQFP |
| 标准包装： | 1,500 |
| 类型： | PLL 时钟发生器 |
| PLL： | 带旁路 |
| 输入： | LVCMOS |
| 输出： | LVCMOS |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:14 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 125MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 52-LQFP |
| 供应商设备封装： | 52-TQFP（10x10） |
| 包装： | 带卷 (TR) |
MPC9774 REVISION 5 JANUARY 10, 2013
3
2013 Integrated Device Technology, Inc.
MPC9774 Data Sheet
3.3 V 1:14 LVCMOS PLL CLOCK GENERATOR
Table 1. Pin Configuration
Pin
I/O
Type
Function
CCLK0
Input
LVCMOS
PLL reference clock
CCLK1
Input
LVCMOS
Alternative PLL reference clock
FB_IN
Input
LVCMOS
PLL feedback signal input, connect to QFB
CCLK_SEL
Input
LVCMOS
LVCMOS clock reference select
VCO_SEL
Input
LVCMOS
VCO operating frequency select
PLL_EN
Input
LVCMOS
PLL enable/PLL bypass mode select
MR/OE
Input
LVCMOS
Output enable/disable (high-impedance tristate) and device reset
CLK_STOP
Input
LVCMOS
Output enable/clock stop (logic low state)
FSEL_A
Input
LVCMOS
Frequency divider select for bank A outputs
FSEL_B
Input
LVCMOS
Frequency divider select for bank B outputs
FSEL_C
Input
LVCMOS
Frequency divider select for bank C outputs
FSEL_FB[1:0]
Input
LVCMOS
Frequency divider select for the QFB output
QA[4:0]
Output
LVCMOS
Clock outputs (Bank A)
QB[4:0]
Output
LVCMOS
Clock outputs (Bank B)
QC[3:0]
Output
LVCMOS
Clock outputs (Bank C)
QFB
Output
LVCMOS
PLL feedback output. Connect to FB_IN.
GND
Supply
Ground
Negative power supply
VCC_PLL
Supply
VCC
PLL positive power supply (analog power supply). It is recommended to use an external RC
filter for the analog power supply pin VCC_PLL. Please see applications section for details.
VCC
Supply
VCC
Positive power supply for I/O and core. All VCC pins must be connected to the positive power
supply for correct operation
Table 2. Function Table (Configuration Controls)
Control
Default
0
1
CCLK_SEL
0
Selects CCLK0 as PLL references signal input
Selects CCKL1 as PLL reference signal
input
VCO_SEL
0
Selects VCO
2. The VCO frequency is scaled by a factor of 2 (high input
frequency range)
Selects VCO
4. The VCO frequency is
scaled by a factor of 4 (low input
frequency range).
PLL_EN
1
Test mode with the PLL bypassed. The reference clock is substituted for
the internal VCO output. MPC9774 is fully static and no minimum
frequency limit applies. All PLL related AC characteristics are not
applicable.
Normal operation mode with PLL
enabled.
CLK_STOP
1
QA, QB an QC outputs disabled in logic low state. QFB is not affected by
CLK_STOP. CLK_STOP deassertion may cause the initial output clock
pulse to be distorted.
Outputs enabled (active)
MR/OE
1
Outputs disabled (high-impedance state) and reset of the device. During
reset/output disable the PLL feedback loop is open and the internal VCO
is tied to its lowest frequency. The MPC9774 requires reset after any loss
of PLL lock. Loss of PLL lock may occur when the external feedback path
is interrupted. The length of the reset pulse should be greater than one
reference clock cycle (CCLKx). The device is reset by the internal power-
on reset (POR) circuitry during power-up.
Outputs enabled (active)
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