MT9041 Zarlink Semiconductor, MT9041 Datasheet - Page 2

• Manufacturer Part Number: MT9041
• Description: Single Reference Frequency Selectable Digital PLL With Multiple Clock Outputs For T1/E1 Trunk And Backplane Synchronization
• Manufacturer: Zarlink Semiconductor

Pin Description
Pin #
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Name
OSCo
C1.5o
OSCi
F16o
REF
C3o
C2o
C4o
V
F0o
F8o
V
IC0
NC
SS
DD
Ground. 0 Volts.
Internal Connect. Connect to Vss
No Connect. Connect to Vss
Reference (TTL Input). PLL reference clock.
Positive Supply Voltage. +5V
Oscillator Master Clock (CMOS Output). For crystal operation, a 20MHz crystal is
connected from this pin to OSCi, see Figure 6. For clock oscillator operation, this pin is left
unconnected, see Figure 5.
Oscillator Master Clock (CMOS Input). For crystal operation, a 20MHz crystal is connected
from this pin to OSCo, see Figure 6. For clock oscillator operation, this pin is connected to a
clock source, see Figure 5.
Frame Pulse ST-BUS 16.384Mb/s (CMOS Output). This is an 8kHz 61ns active low framing
pulse, which marks the beginning of an ST-BUS frame. This is typically used for ST-BUS
operation at 16.384Mb/s. See Figure 11.
Frame Pulse ST-BUS 2.048Mb/s (CMOS Output). This is an 8kHz 244ns active low framing
pulse, which marks the beginning of an ST-BUS frame. This is typically used for ST-BUS
operation at 2.048Mb/s and 4.096Mb/s. See Figure 11.
Frame Pulse ST-BUS 8.192Mb/s (CMOS Output). This is an 8kHz 122ns active high framing
pulse, which marks the beginning of an ST-BUS frame. This is used for ST-BUS operation at
8.192Mb/s. See Figure 11.
Clock 1.544MHz (CMOS Output). This output is used in T1 applications.
Clock 3.088MHz (CMOS Output). This optional output is used in T1 applications.
Clock 2.048MHz (CMOS Output). This output is used for ST-BUS operation at 2.048Mb/s.
Clock 4.096MHz (CMOS Output). This output is used for ST-BUS operation at 2.048Mb/s
and 4.096Mb/s.
OSCo
C1.5o
OSCi
F16o
VDD
F0o
F8o
Figure 2 - Pin Connections
10
11
Zarlink Semiconductor Inc.
5
6
7
8
9
12 13 14 15 16 17 18
4
MT9041B
3 2
DC
MT9041B
nominal.
1
2
28
Description
27
26
19
25
24
23
22
21
20
IC0
IC0
MS
IC0
IC0
IC1
IC0
Data Sheet