PTN3342
High speed differential line receiver
Rev. 01 — 18 June 2001
Objective data
1. Description
The PTN3342 is a differential line receiver that implements the electrical
characteristics of Low-Voltage Differential Signaling (LVDS). This device meets or
exceeds the requirements of the ANSI
TIA/EIA-644 Standard.
LVDS is used to
achieve higher data rates on commonly used media. LVDS overcomes the limitations
of achievable slew rates and EMI restrictions of previous differential signaling
techniques. The PTN3342 operates at a 3.3 volt supply level. Any of the four
differential receivers provides a valid logical output state with a
±100
mV differential
input voltage within the input common-mode voltage range. The input common-mode
voltage range allows 1 volt of ground potential difference between two LVDS nodes.
The PTN3342 is identical to the PTN3332 but with the termination resistor integrated
with the receiver.
The intended application of this device is for point-to-point baseband transmission
rates over a controlled impedance media of approximately 100
Ω.
The maximum
rates and distance of data transfer are dependent upon the attenuation
characteristics of the media selected and the noise coupling to the environment.
The PTN3342 is designed to function over the full industrial temperature range of
−40
to +85
°C.
c
c
2. Features
s
s
s
s
s
s
s
s
s
Meets or exceeds the requirements of ANSI
TIA/EIA-644 Standard
Designed for signaling rates of up to 400 Mbps
Differential input thresholds of
±100
mV
Power dissipation of 60 mW typical at 200 MHz
Typical propagation delay of 2.1 ns
Low Voltage TTL (LVTTL) logic output levels
Pin compatible with AM26LS32 and SN65LVDS32
Open-circuit fail safe
Termination resistors on chip.
Philips Semiconductors
PTN3342
High speed differential line receiver
3. Applications
s
Low voltage, low EMI, high speed differential signal receiver
s
Point-to-point high speed data transmission
s
High performance switches and routers.
4. Ordering information
Table 1:
Ordering information
Package
Name
PTN3342PW
PTN3342D
TSSOP16
SO16
Description
plastic thin shrink small outline package; 16 leads; body width 4.4 mm
plastic small outline package; 16 leads; body width 3.9 mm
Version
SOT403-1
SOT109-1
Type number
939775008484
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 18 June 2001
2 of 18
Philips Semiconductors
PTN3342
High speed differential line receiver
5. Pinning information
5.1 Pinning
1B
1A
1Y
G
2Y
2A
2B
GND
1
2
3
16 V
CC
15 4B
14 4A
1B
1A
1Y
G
2Y
2A
2B
GND
1
2
3
16 V
CC
15 4B
14 4A
PTN3342PW
PTN3342D
4
5
6
7
8
13 4Y
12 G
11 3Y
10 3A
9
3B
4
5
6
7
8
13 4Y
12 G
11 3Y
10 3A
9
3B
002aaa081
002aaa082
Fig 1. TSSOP16 pin configuration.
Fig 2. SO16 pin configuration.
5.2 Pin description
Table 2:
Symbol
1B
1A
1Y
G
2Y
2A
2B
GND
3B
3A
3Y
G
4Y
4A
4B
V
CC
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
LVDS inverting input
LVDS non-inverting input
LVTTL output
Enable (active-HIGH)
LVTTL output
LVDS non-inverting input
LVDS inverting input
Ground
LVDS inverting input
LVDS non-inverting input
LVTTL output
Enable (active-LOW)
LVTTL output
LVDS non-inverting input
LVDS inverting input
Supply
939775008484
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 18 June 2001
3 of 18
Philips Semiconductors
PTN3342
High speed differential line receiver
6. Functional description
6.1 Function table
Table 3:
A, B
V
ID
≥
100 mV
−100
mV < V
ID
< 100 mV
V
ID
≤ −100
mV
X
Open
Function table
Enables
G
H
X
H
X
H
X
L
H
X
[1]
Differential input
Output
G
X
L
X
L
X
L
H
X
L
Y
H
H
?
?
L
L
Z
H
H
H = HIGH level; L = LOW level; X = irrelevant; Z = high impedance; ? = indeterminate state.
6.2 Functional diagram
PTN3342
G
G
4
12
1A
2
LVDS
3
4Y
1B
2A
1
6
LVDS
5
4Y
2B
3A
7
10
LVDS
11
4Y
3B
4A
9
14
LVDS
13
4Y
4B
15
002aaa080
Resistors = 110
Ω.
Fig 3. Functional diagram.
939775008484
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 18 June 2001
4 of 18
Philips Semiconductors
PTN3342
High speed differential line receiver
7. Limiting values
Table 4: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
V
CC
V
I
T
amb
T
j
T
stg
Parameter
supply voltage
input voltage (enables and outputs)
operating ambient temperature range
operating junction temperature
storage temperature range
ESD
[1]
Min
−0.5
−0.5
−40
−40
−65
>2
Max
4.0
V
CC
+ 0.5
+85
+150
+150
−
Unit
V
V
°C
°C
°C
kV
Values beyond absolute maximum ratings can cause the device to be prematurely damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
7.1 Recommended operating conditions
Table 5:
Symbol
V
CC
V
IH
V
IL
V
ID
V
IC
T
amb
Recommended operating conditions
Parameter
supply voltage
HIGH-level input voltage
LOW-level input voltage
Magnitude of differential input voltage
Common-mode input voltage
Operating temperature range
Min
3
2
−
0.1
V
ID
--------
-
2
Nom
3.3
−
−
−
−
−
Max
3.6
−
0.8
0.6
V
ID
2.4
–
--------
-
2
Unit
V
V
V
V
V
°C
−40
+85
939775008484
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 18 June 2001
5 of 18
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