"TI TB5D2H.pdf: LVDS驱动器功能及应用介绍和替代品分析"
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The TI-TB5D2H.pdf document describes the LVDS drivers, specifically the TB5D1M device which is a quad differential PECL driver. This device serves as a pin and functional replacement for the Agere systems BDG1A and BPNGA quad differential drivers. The TB5D1M features four differential outputs and is designed for applications requiring high-speed data transmission with low power consumption.
The device operates with a supply voltage of 3.3V and is suitable for use in a wide range of applications, including communication systems, data acquisition, industrial automation, and high-speed instrumentation. The TB5D1M provides high-speed differential signaling and is capable of driving signals over long distances without signal degradation.
The device is housed in a DW and D package, with pin configurations for the different inputs and outputs clearly marked on the top view of the package. The functional diagram shows the enable truth table for the driver, indicating the different states and conditions for operation.
Overall, the TB5D1M is a versatile and reliable LVDS driver that offers high performance and compatibility with existing systems. Its low power consumption and high-speed data transmission capabilities make it suitable for a wide range of applications in various industries. For those in need of a quad differential PECL driver, the TB5D1M is a highly recommended choice as a functional replacement for the Agere systems BDG1A and BPNGA quad differential drivers.
www.ti.com
SWITCHING CHARACTERISTICS, 3.3-V NOMINAL SUPPLY
TB5D1M , TB5D2H
SLLS579C – SEPTEMBER 2003 – REVISED JANUARY 2008
over recommended operating conditions unless otherwise noted
typ
(1
parameter test conditions min max unit
)
t
P1
Propagation delay time, input high to output
(2)
1.2 3.5
C
L
= 5 pF, See Figure 1 and
ns
Figure 4
t
P2
Propagation delay time, input low to output
(2)
1.2 3.5
Δ t
P
Capacitive delay 0.01 0.03 ns/pF
t
PHZ
Propagation delay time, high-level-to-high-impedance output 8 12
t
PLZ
Propagation delay time, low-level-to-high-impedance output 5 12
C
L
= 5 pF, See Figure 2 and
ns
Figure 4
t
PZH
Propagation delay time, high-impedance-to-high-level output 5 12
t
PZL
Propagation delay time, high-impedance-to-low-level output 8 12
t
skew1
Output skew, |t
P1
- t
P2
| 0.15 0.3
t
shew2
Output skew, |t
PHH
- t
PHL
|, |t
PLH
- t
PLL
| 0.15 1.2
C
L
= 5 pF, See Figure 1 and
ns
Figure 4
t
skew(pp)
Part-to-part skew
(3)
0.1 1
Δ t
skew
Output skew, difference between drivers
(4)
0.3
t
TLH
Rise time (20% - 80%) 0.7 2
C
L
= 5 pF, See Figure 1 and
ns
Figure 4
t
THL
Fall time (80% - 20%) 0.7 2
(1) All typical values are at 25C and with a 3.3-V supply.
(2) Parameters t
P1
and t
P2
are measured from the 1.5 V point of the input to the crossover point of the outputs (see Figure 1 ).
(3) t
skew(pp)
is the magnitude of the difference in differential propagation delay times, t
P1
or t
P2
, between any specified outputs of two devices
when both devices operate with the same supply voltage, at the same temperature, and have identical packages and test circuits.
(4) Δ t
skew
is the magnitude of the difference in differential skew t
skew1
between any specified outputs of a single device.
Copyright © 2003 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): TB5D1M TB5D2H
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