参数资料
型号: DS21Q59LN+
厂商: Maxim Integrated Products
文件页数: 47/76页
文件大小: 0K
描述: IC TXRX E1 QUAD 100-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 90
类型: 收发器
驱动器/接收器数: 4/4
规程: E1
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-LQFP(14x14)
包装: 托盘
DS21Q59 Quad E1 Transceiver
51 of 76
21.3.2 Undedicated Clock Jitter Attenuator
The undedicated jitter attenuator is useful for preparing a user-supplied clock for use as a transmission clock
(TCLK). AJACKI is the input pin and AJCAKO is the output pin. Clocks generated by certain types of PLL or other
synthesizers can contain too much jitter to be appropriate for transmission. Network requirements limit the amount
of jitter that can be transmitted onto the network. This feature is enabled by setting SC1CR.7 = 1 in Transceiver 1.
Figure 21-4. Jitter Tolerance
Figure 21-5. Jitter Attenuation
FREQUENCY (Hz)
UNIT
INTERVALS
(UI
P-
P)
1k
100
10
1
0.1
10
100
1k
10k
100k
DS21Q59
TOLERANCE
1
MINIMUM TOLERANCE
LEVEL AS PER
ITU G.823
40
1.5
0.2
20
2.4k
18k
FREQUENCY (Hz)
0
-20
-60
1
10
100
1k
10k
JITTER
ATTENUATIO
N
(dB)
100k
ITU G.7XX
PROHIBITED AREA
ETS 300 011 AND TBR12
PROHIBITED AREA
40
-40
JITTER ATTENUATION CURVE
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