参数资料
型号: CS2200-CP-CZZR
厂商: CIRRUS LOGIC INC
元件分类: XO, clock
英文描述: PHASE LOCKED LOOP, 75 MHz, PDSO10
封装: 3 MM, LEAD FREE, MO-187, MSOP-10
文件页数: 15/26页
文件大小: 307K
代理商: CS2200-CP-CZZR
CS2200-CP
22
DS759PP1
8.6
Function Configuration 1 (Address 16h)
8.6.1
AUX PLL Lock Output Configuration (AuxLockCfg)
When the AUX_OUT pin is configured as a lock indicator (AuxOutSrc[1:0] = 11), this bit configures the
AUX_OUT driver to either push-pull or open drain. It also determines the polarity of the lock signal. If
AUX_OUT is configured as a clock output, the state of this bit is disregarded.
Note:
AUX_OUT is an unlock indicator, signalling an error condition when the PLL is unlocked. There-
fore, the pin polarity is defined relative to the unlock condition.
8.6.2
Reference Clock Input Divider (RefClkDiv[1:0])
Selects the input divider for the timing reference clock.
8.7
Function Configuration 2 (Address 17h)
8.7.1
Enable PLL Clock Output on Unlock (ClkOutUnl)
Defines the state of the PLL output during the PLL unlock condition.
76543210
Reserved
AuxLockCfg
Reserved
RefClkDiv1
RefClkDiv0
Reserved
AuxLockCfg
AUX_OUT Driver Configuration
0
Push-Pull, Active High (output ‘high’ for unlocked condition, ‘low’ for locked condition).
1
Open Drain, Active Low (output ‘low’ for unlocked condition, high-Z for locked condition).
Application:
RefClkDiv[1:0]
Reference Clock Input Divider
REF_CLK Frequency Range
00
÷4.
32 MHz to 75 MHz (50 MHz with XTI)
01
÷ 2.
16 MHz to 37.5 MHz
10
÷ 1.
8 MHz to 18.75 MHz
11
Reserved.
Application:
76543210
Reserved
ClkOutUnl
Reserved
ClkOutUnl
Clock Output Enable Status
0
Clock outputs are driven ‘low’ when PLL is unlocked.
1
Clock outputs are always enabled (results in unpredictable output when PLL is unlocked).
Application:
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