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參數(shù)資料
| 型號： | ZL30109QDG1 |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | DS1/E1 System Synchronizer with |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1 MM HEIGHT, LEAD FREE, MS-026ACD, TQFP-64 |
| 文件頁數(shù)： | 10/37頁 |
| 文件大?。?/td> | 751K |
| 代理商： | ZL30109QDG1 |
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ZL30109
Data Sheet
10
Zarlink Semiconductor Inc.
3.0 Functional Description
The ZL30109 is a DS1/E1 System Synchronizer providing timing (clock) and synchronization (frame) signals to
interface circuits for DS1 and E1 Primary Rate Digital Transmission links and OC-3/STM-1 links, as well as a
19.44 MHz output for SDH line card applications. Figure 1 is a functional block diagram which is described in the
following sections.
3.1 Reference Select Multiplexer (MUX)
The ZL30109 accepts two simultaneous reference input signals and operates on their rising edges. One of them,
the primary reference (REF0) or the secondary reference (REF1) signal can be selected as input to the TIE
corrector circuit based on the reference selection (REF_SEL) input.
3.2 Reference Monitor
The input references are monitored by two independent reference monitor blocks, one for each reference. The
block diagram of a single reference monitor is shown in Figure 3. For each reference clock, the frequency is
detected and the clock is continuously monitored for three independent criteria that indicate abnormal behavior of
the reference signal, for example; long term drift from its nominal frequency or excessive jitter. To ensure proper
operation of the reference monitor circuit, the minimum input pulse width restriction of 15 nsec must be
observed.
53
REF_SEL
Reference Select (Input)
. This input selects the input reference that is used for
synchronization, see Table 5 on page 20. This pin is internally pulled down to GND.
54
NC
No internal bonding Connection.
Leave unconnected.
55
REF0
Reference (Input).
This is one of two (REF0, REF1) input reference sources used for
synchronization. One of seven possible frequencies may be used: 2 kHz, 8 kHz,
1.544 MHz, 2.048 MHz, 8.192 MHz, 16.384 MHz, or 19.44 MHz. This pin is internally
pulled down to GND.
56
NC
No internal bonding Connection.
Leave unconnected.
57
REF1
Reference (Input).
See REF0 pin description.
58
NC
No internal bonding Connection.
Leave unconnected.
59
IC
Internal Connection.
Connect this pin to ground.
60
OOR_SEL
Out Of Range Selection (Input).
This pin selects the out of range reference rejection
limits, see Table 1 on page 17.
61
V
DD
NC
Positive Supply Voltage.
+3.3 V
DC
nominal.
No internal bonding Connection.
Leave unconnected.
62
63
TIE_CLR
TIE Corrector Circuit Reset (Input).
A logic low at this input resets the Time Interval
Error (TIE) correction circuit resulting in a realignment of the input phase with the output
phase.
64
BW_SEL
Filter Bandwidth Selection (Input).
This pin selects the bandwidth of the DPLL loop
filter, see Table 2 on page 18. Set continuously high to track jitter on the input reference
closely or set temporarily high to allow the ZL30109 to quickly lock to the input reference.
Pin Description (continued)
Pin #
Name
Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL30109 | DS1/E1 System Synchronizer with 19.44 MHz Output |
| ZL30109QDG | DS1/E1 System Synchronizer with 19.44 MHz Output |
| ZL30110 | Telecom Rate Conversion DPLL |
| ZL30110LDE | Telecom Rate Conversion DPLL |
| ZL30110LDE1 | Telecom Rate Conversion DPLL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL30110 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Telecom Rate Conversion DPLL |
| ZL30110LDE | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:PLL FREQ SYNTHESIZER TRIPLE 32QFN - Rail/Tube |
| ZL30110LDE1 | 制造商:Microsemi Corporation 功能描述: |
| ZL30110LDF1 | 制造商:Microsemi Corporation 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Tape and Reel |
| ZL30110LDG1 | 制造商:Microsemi Corporation 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DPLL RATE CONVERSION 32QFN 制造商:Microsemi Corporation 功能描述:IC DPLL RATE CONVERSION 32QFN |
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