3D3521
MONOLITHIC MANCHESTER
ENCODER
(SERIES 3D3521)
FEATURES
•
•
•
•
•
•
•
All-silicon, low-power CMOS
technology
3.3V operation
CMOS compatible inputs and
outputs
Vapor phase, IR and wave
solderable
Auto-insertable (DIP pkg.)
Low ground bounce noise
Maximum data rate:
50 MBaud
data
3
delay
devices,
inc.
PACKAGES
CLK
N/C
N/C
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VDD
N/C
N/C
N/C
N/C
TXB
TX
CLK
RESB
DAT
GND
3D3521M
3D3521H
3D3521Z
1
2
3
4
8
7
6
5
VDD
N/C
TXB
TX
RESB
DAT
N/C
GND
DIP (.300)
Gull Wing (.300)
SOIC (.150)
3D3521 DIP (.300)
3D3521G Gull Wing (.300)
3D3521D SOIC (.150)
For mechanical dimensions, click
.
For package marking details, click
.
FUNCTIONAL DESCRIPTION
The 3D3521 is a monolithic CMOS Manchester Encoder. The clock
and data, present at the unit input, are combined into a single bi-phase-
level signal. In this encoding mode, a logic one is represented by a
high-to-low transition within the bit cell, while a logic zero is represented
by a low-to-high transition. The unit operating baud rate (in Mbaud) is
equal to the input clock frequency (in MHZ). All pins marked N/C must
be left unconnected.
PIN DESCRIPTIONS
DAT
CLK
RESB
TX
TXB
VDD
GND
Data Input
Clock Input
Reset
Signal Output
Inverted Signal Output
+3.3 Volts
Ground
The all-CMOS 3D3521 integrated circuit has been designed as a reliable, economic alternative to hybrid
Manchester Encoders. It is CMOS-compatible and is offered in standard 8-pin and 14-pin auto-insertable
DIPs and space saving surface mount 8-pin and 14-pin SOICs.
Doc #06004
5/8/2006
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
DATADELAY [ DATA DELAY DEVICES, INC. ]
