參數(shù)資料
型號: DS3106LN+
廠商: Maxim Integrated Products
文件頁數(shù): 27/92頁
文件大小: 0K
描述: IC TIMING LINE CARD 64-LQFP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 160
類型: 定時卡 IC,多路復用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum,電信
輸入: CMOS,TTL
輸出: CMOS,LVDS,LVPECL,TTL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 無/是
頻率 - 最大: 312.5MHz
電源電壓: 1.62 V ~ 1.98 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 托盤
產(chǎn)品目錄頁面: 1429 (CN2011-ZH PDF)
DS3106
33
Table 7-17. OC3 Default Frequency Configuration
O3F[2:0]
SONSDH
FREQUENCY
(MHz)
O6F[2:0]
=001
OFREQ3
APLL
SRC
000
X
0
X
0000
001
0
8.192
FALSE
1101
T4
1
6.176
1101
T4
001
0
8.192
TRUE
0111
T0
1
12.352
0111
T0
010
0
68.736
X
1111
T4
010
1
22.368
X
1110
T4
011*
X
19.44
X
0110
T0
100
X
25.92
X
0111
T0
101
X
38.88
X
1000
T0
110
X
51.84
X
1001
T0
111
X
77.76
X
1010
T0
*Occurs when O3F[2:0] are left unconnected.
7.8.2.5 FSYNC and MFSYNC Configuration
The FSYNC output is enabled by setting FSEN = 1 in the OCR4 register, while the MFSYNC output is enabled by
setting MFSEN = 1 in OCR4. When disabled, these pins are driven low.
When 8KPUL = 0 in FSCR1, FSYNC is configured as an 8kHz clock with 50% duty cycle. When 8KPUL = 1,
FSYNC is an 8kHz frame sync that pulses low once every 125
s with pulse width equal to one cycle of output
clock OC3. When 8KINV = 1 in FSCR1, the clock or pulse polarity of FSYNC is inverted.
When 2KPUL = 0 in FSCR1, MFSYNC is configured as an 2kHz clock with 50% duty cycle. When 2KPUL = 1,
MFSYNC is a 2kHz frame sync that pulses low once every 500
s with pulse width equal to one cycle of output
clock OC3. When 2KINV = 1 in FSCR1, the clock or pulse polarity f MFSYNC is inverted.
If either 8KPUL = 1 or 2KPUL = 1, output clock OC3 must be generated from the T0 DPLL and must be configured
for a frequency of 1.544MHz or higher or the FSYNC/MFSYNC pulses may not be generated correctly. Figure 7-3
shows how the 8KPUL and 8KINV control bits affect the FSYNC output. The 2KPUL and 2KINV bits have an
identical effect on MFSYNC.
Figure 7-3. FSYNC 8kHz Options
OC3 OUTPUT CLOCK
FSYNC, 8KPUL=0, 8KINV=0
FSYNC, 8KPUL=0, 8KINV=1
FSYNC, 8KPUL=1, 8KINV=0
FSYNC, 8KPUL=1, 8KINV=1
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