zl50020 Zarlink Semiconductor, zl50020 Datasheet - Page 12

• Manufacturer Part Number: zl50020
• Description: Enhanced 2 K Channel Tdm Switch With Rate Conversion
• Manufacturer: Zarlink Semiconductor

H5, P10, E9,
A8, A9, A14,
R16, T6, T7,
T15, D9, E8,
T8, T9, T10,
M2, N2, P2,
C8, E7, D6,
B7, C7, B5,
D8, B8, D7
PBGA Pin
G15, G14,
H14, D11,
A15, E10,
M14, R13
T11, T12,
T13, T14,
E15, F14
P16, R2,
Number
F15
J6
LQFP Pin
134, 135,
136, 137,
138, 139,
140, 152,
215, 219,
225, 229,
163, 165,
167, 176,
161, 164,
102, 106,
100, 104,
170, 172,
166, 168
174, 227
Number
110, 112
237159,
221, 43,
61, 62,
63, 64,
65, 66,
67, 68,
46, 48
236,
108
FPo_OFF0 - 2
MODE_4M0,
MODE_4M1
Pin Name
CKo0 - 3
FPo0 - 3
NC
Zarlink Semiconductor Inc.
No Connect
These pins MUST be left unconnected.
4M Input Clock Mode 0 to 1 (5 V-Tolerant Input with internal
pull-down) These two pins should be tied together and are
typically used to select CKi = 4.096 MHz operation. See Table 7,
“ZL50020 Operating Modes” on page 32 for a detailed explanation.
See Table 13, “Control Register (CR) Bits” on page 39 for CKi and
FPi selection using the CKIN1 - 0 bits.
ST-BUS/GCI-Bus Frame Pulse Outputs 0 to 3 (5 V-Tolerant
Three-state Outputs)
FPo0: 8 kHz frame pulse corresponding to the 4.096 MHz output
clock of CKo0.
FPo1: 8 kHz frame pulse corresponding to the 8.192 MHz output
clock of CKo1.
FPo2: 8 kHz frame pulse corresponding to 16.384 MHz output
clock of CKo2.
FPo3: Programmable 8 kHz frame pulse corresponding to
4.096 MHz, 8.192 MHz, 16.384 MHz, or 32.768 MHz output clock
of CKo3.
Generated Offset Frame Pulse Outputs 0 to 2 (5 V-Tolerant
Three-state Outputs)
Individually programmable 8 kHz frame pulses, offset from the
output frame boundary by a programmable number of channels.
ST-BUS/GCI-Bus Clock Outputs 0 to 3 (5 V-Tolerant
Three-state Outputs)
CKo0: 4.096 MHz output clock.
CKo1: 8.192 MHz output clock.
CKo2: 16.384 MHz output clock.
CKo3: 4.096 MHz, 8.192 MHz or 16.384 MHz programmable
output clock. 32.768 MHz if in multiplied clock mode.
ZL50020
12
Description
Data Sheet