zl30122 Zarlink Semiconductor, zl30122 Datasheet - Page 14

• Manufacturer Part Number: zl30122
• Description: Sonet/sdh Low Jitter Line Card Synchronizer
• Manufacturer: Zarlink Semiconductor

1.5
The ZL30122 offers a wide variety of outputs including one low-jitter differential LVPECL clock (diff_clk_p/n), one
SONET/SDH LVCMOS (sdh_clk) output clock and one programmable LVCMOS (p_clk) output clock. In addition to
the clock outputs, one LVCMOS SONET/SDH frame pulse output (sdh_fp) and one LVCMOS programmable frame
pulse (p_fp) is also available.
The supported frequencies for the output clocks and frame pulses are shown in Table 4.
Output Clocks and Frame Pulses
diff_clk_p/n
155.52 MHz
311.04 MHz
622.08 MHz
19.44 MHz
38.88 MHz
51.84 MHz
77.76 MHz
(LVPECL)
6.48 MHz
Table 4 - Output Clock and Frame Pulse Frequencies
DPLL
(LVCMOS)
12.96 MHz
19.44 MHz
25.92 MHz
38.88 MHz
51.84 MHz
77.76 MHz
6.48 MHz
9.72 MHz
sdh_clk
Figure 6 - Output Configuration
Zarlink Semiconductor Inc.
ZL30122
14
Programmable
SONET/SDH
Synthesizer
N * 8 kHz (up to 77.76
APLL
(LVCMOS)
p_clk
2 kHz
MHz)
p_clk
p_fp
sdh_clk
sdh_fp
diff_clk_p/n
(48x 125 2s frames)
sdh_fp, p_fp
(LVCMOS)
166.67 Hz
400 Hz
32 kHz
64 kHz
1 kHz
2 kHz
4 kHz
8 kHz
Data Sheet