PTN3331
High speed differential line driver
Rev. 01 — 21 May 2001
Objective data
1. Description
The PTN3331 is a differential line driver that implements the electrical characteristics
of Low-Voltage Differential Signaling (LVDS) that 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 PTN3331 operates
at 3.3 volt supply levels and current mode output drivers. The output drivers will
deliver a minimum of 247 mV into a 100
Ω
load when enabled.
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 rate
and distance of data transfer is dependent upon the attenuation characteristics of the
media selected and the noise coupling to the environment.
The PTN3331 is designed to function over the full industrial temperature range of
−40
to +85
°C.
2. Features
c
c
s
Meets or exceeds the requirements of ANSI
TIA/EIA-644 Standard
s
Low-Voltage Differential Signaling with output voltage of 350 mV across a 100
Ω
load
s
300 ps maximum channel to channel output skew
s
500 ps typical output voltage rise and fall times
s
Power dissipation of 100 mW typical at 200 MHz
s
Driver at high impedance when disabled or with V
CC
= 0 V
s
5 volt tolerant inputs with Low Voltage TTL (LVTTL) logic input levels
s
Pin-compatible with AM26LS31 and SN65LVDS31.
3. Applications
s
Low voltage, low EMI, high speed differential signaling
s
Point-to-point high speed data transmission
s
High performance switches and routers.
Philips Semiconductors
PTN3331
High speed differential line driver
4. Ordering information
Table 1:
Ordering information
Package
Name
PTN3331PW
PTN3331D
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
5. Pinning information
5.1 Pinning
1A
1Y
1Z
G
2Z
2Y
2A
GND
1
2
3
16 V
CC
15 4A
14 4Y
1A
1Y
1Z
G
2Z
2Y
2A
GND
1
2
3
16 V
CC
15 4A
14 4Y
PTN3331PW
PTN3331D
4
5
6
7
8
13 4Z
12 G
11 3Z
10 3Y
9
3A
4
5
6
7
8
13 4Z
12 G
11 3Z
10 3Y
9
3A
002aaa025
002aaa018
Fig 1. TSSOP16 pin configuration.
Fig 2. SO16 pin configuration.
5.2 Pin description
Table 2:
Symbol
1A
1Y
1Z
G
2Z
2Y
2A
GND
3A
3Y
3Z
G
4Z
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Description
LVTTL input
LVDS non-inverting output
LVDS inverting output
Enable (active-HIGH)
LVDS inverting output
LVDS non-inverting output
LVTTL input
Ground
LVTTL input
LVDS non-inverting output
LVDS inverting output
Enable (active-LOW)
LVDS inverting output
939775008339
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 21 May 2001
2 of 16
Philips Semiconductors
PTN3331
High speed differential line driver
Pin description
…continued
Pin
14
15
16
Description
LVDS non-inverting output
LVTTL input
Supply
Table 2:
Symbol
4Y
4A
V
CC
6. Functional description
6.1 Function table
Table 3:
Input
A
H
L
H
L
X
Open
Open
[1]
Function table
Enables
G
H
H
X
X
L
H
X
G
X
X
L
L
H
X
L
Outputs
Y
H
L
H
L
Z
L
L
Z
L
H
L
H
Z
H
H
H = HIGH level; L = LOW level; X = irrelevant; Z = high impedance.
6.2 Functional diagram
PTN3331
G
G
1A
4
12
2
1
LVDS
3
1Y
1Z
6
2A
7
LVDS
5
2Y
2Z
10
3A
9
LVDS
11
3Y
3Z
14
4A
15
LVDS
13
4Y
4Z
002aaa017
Fig 3. Functional diagram.
939775008339
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 21 May 2001
3 of 16
Philips Semiconductors
PTN3331
High speed differential line driver
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
short circuit duration
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
sec
°C
°C
°C
kV
Continuous
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
Recommended operating conditions
Parameter
supply voltage
HIGH-level input voltage
LOW-level input voltage
Min
3
2
−
Nom
3.3
−
−
Max
3.6
−
0.8
Unit
V
V
V
939775008339
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 21 May 2001
4 of 16
Philips Semiconductors
PTN3331
High speed differential line driver
8. Static characteristics
Table 6: DC electrical characteristics
Over recommended operating conditions, unless otherwise noted.
Symbol
V
OD
∆V
OD
V
OC(SS)
∆V
OC(SS)
Parameter
differential output voltage
change in differential voltage
magnitude between logic states
Steady-state common-mode output
voltage
Change in steady-state
common-mode output voltage
between logic states
Peak-to-peak common-mode output
voltage
Supply current
V
I
= 0.8 or 2 V;
enabled, no load
V
I
= 0.8 or 2 V;
enabled, R
L
= 100
Ω
V
I
= 0 V or V
CC
;
disabled
I
IH
I
IL
I
OS
I
OZ
I
O(OFF)
C
i
[1]
Conditions
R
L
= 100
Ω
See
Figure 4.
Min
247
−50
1.125
−50
Typ
[1]
340
−
1.2
−
Max
454
+50
1.375
+50
Unit
mV
mV
V
mV
V
OC(PP)
I
CC
−
−
−
−
−
−
−
−
1
−
50
9
25
0.25
4
0.1
−4
±1
−
3
150
20
35
1
20
10
−24
−
−1
−
mV
mA
mA
mA
µA
µA
mA
µA
µA
pF
HIGH-level input current
LOW-level input current
Output short circuit current
High-impedance output current
Power-off output current
Input capacitance
V
IH
= 2 V
V
IL
= 0.8 V
V
O(Y)
or V
O(Z)
= 0 V
V
OD
= 0 V or 2.4 V
V
CC
= 0 V; V
O
= 2.4 V
All typical values are at T
amb
= 25
°C
and V
CC
= 3.3 V.
939775008339
© Philips Electronics N.V. 2001. All rights reserved.
Objective data
Rev. 01 — 21 May 2001
5 of 16
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