Philips Semiconductors Product data sheet
PCK3807A
1:10 LVTTL clock distribution device
2
2004 Aug 27
DESCRIPTION
This low skew clock driver offers 1:10 fan-out. The large fan out from
a single input reduces loading on the preceding driver and provides
an efficient clock distribution network. The PCK3807A offers low
capacitance inputs with hysteresis for improved noise margins.
Multiple power and grounds reduce noise. Typical applications are
clock and signal distribution.
The PCK3807A operates from a single 2.5 V or 3.3 V supply voltage
and over the full industrial temperature range of –40 °C to +85 °C.
FEATURES
• Low output skew < 120 ps (max)
• Very low duty cycle distortion < 200 ps (max) for V
CC
= 2.5 V
• High speed: propagation delay < 3.5 ns (max)
• Very low CMOS power levels
• TTL compatible inputs and outputs
• 1:10 fanout
• Maximum output rise and fall times < 1.5 ns
• Low input capacitance: 2.5 pF typical
• V
CC
= 2.3 V to 3.6 V
• Overvoltage tolerance on inputs
• Available in SSOP, TSSOP, SO and QSOP packages
• >150 MHz operation
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER
20-Pin Plastic SO –40 °C to +85 °C PCK3807AD SOT163-1
20-Pin Plastic SSOP –40 °C to +85 °C PCK3807ADB SOT339-1
20-Pin Plastic TSSOP –40 °C to +85 °C PCK3807APW SOT360-1
20-Pin Plastic SSOP (QSOP) –40 °C to +85 °C PCK3807ADS SOT724-1
FUNCTIONAL BLOCK DIAGRAM
SW00985
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
IN
PIN CONFIGURATION
SW00986
GND
O5
IN
O1
O2
O3
O4
O10
O9
O8
O7
O6
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
GND
GND
GND
GND
V
CC
V
CC
V
CC
V
CC
PIN DESCRIPTION
Symbol Pin Description
IN 1 Clock input
O1 to O10
3, 5, 7, 9, 11, 12,
14, 16, 18, 19
Clock outputs
GND 2, 10, 13, 17 Ground
V
CC
20 Supply voltage
