BPNGA [AGERE]

QUAD DIFFERENTIAL DRIVERS; 四路差分驱动器
BPNGA
型号: BPNGA
厂家: AGERE SYSTEMS    AGERE SYSTEMS
描述:

QUAD DIFFERENTIAL DRIVERS
四路差分驱动器

驱动器
文件: 总16页 (文件大小:245K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Data Sheet  
January 1999  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
26LS31, but offer increased speed, decreased power  
consumption, and significantly lower levels of electro-  
magnetic interference (EMI). They replace the Agere  
41 Series drivers.  
Features  
Pin-equivalent to the general-trade 26LS31 device,  
with improved speed, reduced power consumption,  
and significantly lower levels of EMI  
The BDG1A device is the generic driver in this family  
and requires the user to supply external resistors on  
the circuit board for impedance matching.  
Four line drivers per package  
Meets ESDI standards  
The BDGLA is a low-power version of the BDG1A,  
reducing the power requirement by more than one  
half. The BDGLA features a 3-state output with a typ-  
ical third-state level of 0.2 V.  
2.0 ns maximum propagation delay  
Single 5.0 V ± 10% supply  
Operating temperature range: 40 °C to +125 °C  
The BDP1A is equivalent to the BDG1A but has  
220 termination resistors to ground on each driver  
output. This eliminates the need for external pull-  
down resistors when driving a 100 impedance line.  
(wider than the 41 Series)  
400 Mbits/s maximum data rate  
Logic to convert TTL input logic levels to differen-  
tial, pseudo-ECL output logic levels  
The BPNGA and BPNPA are equivalent to the  
BDG1A and BDP1A, respectively, except that a light-  
ning protection circuit has been added to the driver  
outputs. This circuit will absorb large transitions on  
the transmission lines without destroying the device.  
No line loading when VCC = 0 (BDG1A, BDP1A  
only)  
High output driver for 50 loads  
<0.2 ns output skew (typical)  
On-chip 220 loads available  
Third-state outputs available  
The BPPGA combines the features of the BPNGA  
and BPNPA. Two of the gates have their outputs ter-  
minated to ground through 220 resistors while the  
two remaining gates require external termination  
resistors.  
Surge-protection to ±60 V for 10 ms available  
(BPNGA, BPNPA, BPPGA)  
When the BDG1A and the BDP1A devices are pow-  
ered down, the output circuit appears as an open cir-  
cuit relative to the power supplies; hence, they will  
not load the transmission line. For those circuits with  
termination resistors, the line will remain impedance  
matched when the circuit is powered down. The  
BPNGA, BPNPA, BPPGA, and BDGLA will load the  
transmission line, because of the protection circuit,  
when the circuit is powered down.  
Available in four package types  
ESD performance better than the 41 Series  
Lower power requirement than the 41 Series  
Description  
These quad differential drivers are TTL input-to-  
pseudo-ECL-differential-output used for digital data  
transmission over balanced transmission lines. All  
devices in this family have four drivers with a single  
enable control in a common package. These drivers  
are compatible with many receivers, including the  
Agere Systems Inc. 41 Series receivers and trans-  
ceivers. They are pin equivalent to the general-trade  
The packaging options that are available for these  
quad differential line drivers include a 16-pin DIP; a  
16-pin, J-lead SOJ; a 16-pin, gull-wing SOIC; and a  
16-pin, narrow-body, gull-wing SOIC.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Pin Information  
AI  
AO  
AO  
E1  
VCC  
DI  
AI  
AO  
AO  
E1  
VCC  
DI  
AI  
AO  
AO  
E1  
VCC  
DI  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
A
A
A
D
D
D
DO  
DO  
E2  
DO  
DO  
E2  
DO  
DO  
E2  
BO  
BO  
BI  
BO  
BO  
BI  
BO  
BO  
BI  
CO  
CO  
CI  
CO  
CO  
CI  
CO  
CO  
CI  
B
B
B
C
C
C
GND  
GND  
GND  
BDG1A  
BDGLA  
BPNGA  
BDP1A  
BPNPA  
BPPGA  
12-2038b (F)  
Figure 1. Quad Differential Driver Logic Diagrams  
Table 1. Enable Truth Table  
E1  
0
E2  
0
Condition  
Active  
1
0
Active  
0
1
Disabled  
Active  
1
1
Absolute Maximum Ratings  
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-  
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess  
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended  
periods can adversely affect device reliability.  
Parameter  
Power Supply Voltage  
Symbol  
VCC  
Min  
Max  
6.5  
Unit  
V
Ambient Operating Temperature  
Storage Temperature  
TA  
40  
55  
125  
150  
°C  
°C  
Tstg  
2
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Electrical Characteristics  
For electrical characteristics over the entire temperature range, see Figures 7 through 9.  
Table 2. Power Supply Current Characteristics  
TA = 40 °C to +125 °C, VCC = 5 V ± 0.5 V.  
Parameter  
Power Supply Current (VCC = 5.5 V):  
All Outputs Disabled:  
BDG1A*, BPNGA*  
BDP1A, BPNPA†  
BDGLA*  
Symbol  
Min  
Typ  
Max  
Unit  
ICC  
ICC  
ICC  
ICC  
45  
120  
35  
65  
160  
55  
mA  
mA  
mA  
mA  
BPPGA*†  
85  
115  
All Outputs Enabled:  
BDG1A*, BPNGA*  
BDP1A, BPNPA†  
BDGLA*  
ICC  
ICC  
ICC  
ICC  
25  
150  
14  
40  
200  
20  
mA  
mA  
mA  
mA  
BPPGA*†  
90  
115  
* Measured with no load (BPPGA has no load on drivers C and D).  
The additional power dissipation is the result of integrating the termination resistors into the device. ICC is measured with a 100 resistor  
across the driver outputs (BPPGA has terminating resistors on drivers A and B).  
Third State  
These drivers produce pseudo-ECL levels, and the third-state mode is different than the conventional TTL devices.  
When a driver is placed in the third state, the bases of the output transistors are pulled low, bringing the outputs  
below the active-low levels. This voltage is typically 2 V for most drivers. In the bidirectional bus application, the  
driver of one device, which is in its third state, may be back driven by another driver on the bus whose voltage in  
the low state is lower than the third-stated device. This could come about due to differences in the driversindepen-  
dent power supplies. In this case, the device in the third state will control the line, thus clamping the line and reduc-  
ing the signal swing. If the difference voltage between the independent power supplies and the drivers is small,  
then this consideration can be ignored. In the typical case, the difference voltage can be as much as 1 V without  
significantly affecting the amplitude of the driving signal.  
Agere Systems Inc.  
3
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Electrical Characteristics (continued)  
Table 3. Voltage and Current Characteristics  
For the variation in VOH and VOL over the temperature range, see Figures 7 and 8.  
TA = 40 °C to +125 °C.*  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Output Voltages:  
Low*  
VOL  
VOH 1.4  
VOH 1.1  
VOH 0.65  
V
High*:  
BDG1A, BDP1A, BPNGA, BPNPA, BPPGA  
BDGLA  
Differential Voltage (VOH VOL)  
Output Voltages (TA = 0 °C to 85 °C):  
Low*  
VOH  
VOH  
VDIFF  
VCC 1.8  
VCC 2.5  
0.65  
VCC 1  
VCC 2  
1.1  
VCC 0.8  
VCC 1.6  
1.4  
V
V
V
VOL  
VOH 1.4  
VOH 1.1  
VOH 0.8  
V
High*:  
BDG1A, BDP1A, BPNGA, BPNPA, BPPGA  
BDGLA  
Differential Voltage (VOH VOL)  
Third State, IOH = 1.0 mA, VCC = 4.5 V:  
BDG1A, BDP1A, BPNGA, BPNPA, BPPGA  
BDGLA  
VOH  
VOH  
VDIFF  
VCC 1.5  
VCC 2.5  
0.8  
VCC 1  
VCC 2  
1.1  
VCC 0.8  
VCC 1.6  
1.4  
V
V
V
VOZ  
VOZ  
VOL 0.5  
VOL 0.2  
V
V
0.2  
0.5  
Input Voltages:  
Low, VCC = 5.5 V:  
Data Input  
Enable Input  
VIL  
VIL  
2.0  
0.8  
0.7  
1.0  
V
V
V
V
mA  
High, VCC = 4.5 V  
VIH  
VIK  
IOS  
Clamp, VCC = 4.5 V, II = 5.0 mA  
Short-circuit Output Current, VCC = 5.5 V  
Input Currents, VCC = 5.5 V:  
Low, VI = 0.4 V  
High, VI = 2.7 V  
Reverse, VI = 5.5 V  
100  
IIL  
IIH  
IIH  
400  
20  
100  
µA  
µA  
µA  
Output Resistors:  
BDP1A, BPNPA, BPPGA§  
* Values are with terminations as per Figure 4 or equivalent.  
RO  
220  
The input levels and difference voltage provide zero noise immunity and should be tested only in a static, noise-free environment.  
Test must be performed one lead at a time to prevent damage to the device.  
§ See Figure 1 for BPPGA terminations.  
4
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Timing Characteristics  
Table 4. Timing Characteristics (See Figures 2 and 3.)  
For tP1 and tP2 propagation delays over the temperature range, see Figure 9.  
Propagation delay test circuit connected to output (see Figure 6).  
TA = 40 °C to +125 °C, VCC = 5 V ± 0.5 V.  
Parameter  
Propagation Delay:  
Symbol  
Min  
Typ  
Max  
Unit  
Input High to Output†  
Input Low to Output†  
tP1*  
tP2*  
tp  
0.8  
0.8  
1.2  
1.2  
2.0  
2.0  
ns  
ns  
Capacitive Delay  
0.02  
0.03  
ns/pF  
Disable Time (either E1 or E2):  
High-to-high Impedance  
Low-to-high Impedance  
Enable Time (either E1 or E2):  
High Impedance to High  
High Impedance to Low  
Output Skew, |tP1 tP2|  
|tPHH tPHL|, |tPLH tPLL|  
Difference Between Drivers  
Rise Time (20%80%)  
Fall Time (80%20%)  
tPHZ  
tPLZ  
4
4
8
8
12  
12  
ns  
ns  
tPZH  
tPZL  
4
8
12  
12  
0.3  
0.5  
0.3  
2
ns  
ns  
ns  
ns  
ns  
ns  
ns  
4
8
tskew1  
tskew2  
tskew  
ttLH  
0.1  
0.2  
0.7  
0.7  
ttHL  
2
* tP1 and tP2 are measured from the 1.5 V point of the input to the crossover point of the outputs (see Figure 2).  
CL = 5 pF. Capacitor is connected from each output to ground.  
Agere Systems Inc.  
5
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Timing Characteristics (continued)  
2.4 V  
INPUT  
TRANSITION  
1.5 V  
0.4 V  
tP1  
tP2  
VOH  
VOL  
OUTPUTS  
OUTPUT  
tPHH  
tPLL  
VOH  
(VOH + VOL)/2  
VOL  
VOH  
OUTPUT  
OUTPUT  
(VOH + VOL)/2  
VOL  
tPHL  
tPLH  
VOH  
VOL  
80%  
80%  
20%  
20%  
ttLH  
ttHL  
12-2677F  
Figure 2. Driver Propagation-Delay Timing  
3.0 V  
1.3 V  
0.0 V  
E1*  
3.0 V  
1.3 V  
0.0 V  
E2  
tPHZ  
tPZH  
VOH  
VOL + 0.2 V  
VOL  
OUTPUT  
OUTPUT  
VOL 0.1 V  
VOL  
VOL 0.1 V  
tPLZ  
tPZL  
12-2268.dC  
* E2 = 1 while E1 changes state.  
E1 = 0 while E2 changes state.  
Note: In the third state, both outputs (i.e., OUTPUT and OUTPUT) are 0.2 V below the low state.  
Figure 3. Driver Enable and Disable Timing for a High Input  
6
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and  
Data Sheet  
January 1999  
Test Conditions  
Output Characteristics  
Parametric values specified under the Electrical Char-  
acteristics and Timing Characteristics sections for the  
data transmission driver devices are measured with the  
following output load circuits.  
Figure 6 illustrates typical driver output characteristics.  
Included are load lines for two typical termination con-  
figurations.  
OUTPUT VOLTAGE (V)  
VCC 2 V  
VCC 1 V  
VCC  
100 Ω  
DO(+)  
200 Ω  
DO()  
200 Ω  
VOH  
10  
20  
30  
40  
Y LOAD  
BDG1A, BPNGA, BDGLA, BPPGA (Gates A & B)  
VOL  
12-2271F  
π LOAD  
100 Ω  
DO  
DO  
12-2269F  
BDP1A, BPNPA, BPPGA (Gates C & D)  
Figure 4. Driver Test Circuit  
A. Output Current vs. Output Voltage for Loads  
Shown in C and D (BDG1A, BDP1A, BPNGA,  
BPNPA, and BPPGA)  
12-2271.bC  
OUTPUT VOLTAGE (V)  
VCC 3 V  
VCC 2 V  
VCC 1 V  
VCC  
VOH  
+5 V  
10  
20  
30  
40  
110 Ω  
Y LOAD  
VOL  
DUT  
110 Ω  
π LOAD  
+60 V  
SURGE  
+
+60 V  
SURGE  
10 µs  
DURATION  
12-2818aC  
+
10 µs  
B. Output Current vs. Output Voltage for Loads  
Shown in C and D (BDGLA)  
1 ms  
REPETITION  
DURATION  
1 ms  
REPITITION  
60 Ω  
60 Ω  
12-2640.aF  
DO  
DO  
Note: Surges can be applied simultaneously, but never in opposite  
polarities.  
90 Ω  
Figure 5. Lightning-Surge Testing Configuration  
(BPNGA, BPNPA, and BPPGA)  
12-2270F  
C. Y Load  
100 Ω  
DO(+)  
DO()  
200 Ω  
200 Ω  
12-2271F  
D. π Load  
Figure 6. Driver Output Current vs. Voltage  
Characteristics  
Agere Systems Inc.  
7
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Temperature Characteristics  
0
2.3  
2.1  
1.9  
1.7  
1.5  
1.3  
1.1  
0.9  
0.7  
0.5  
VOH MAX  
RANGE FOR tP1 AND tP2  
MAX  
1.0  
1.5  
MIN  
VOH MIN  
VOL MAX  
2.0  
2.5  
0.5  
0.3  
50 25  
VOL MIN  
125 150  
50  
25  
0
25  
50  
75  
100  
0
25  
50  
75  
100  
125 150  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
12-3467F  
12-3469aF  
Figure 7. VOL and VOH Extremes vs. Temperature  
Figure 9. Min and Max for tP1 and tP2 Propagation  
Delays vs. Temperature  
for 100 Load  
Handling Precautions  
1.2  
CAUTION: This device is susceptible to damage  
as a result of electrostatic discharge.  
Take proper precautions during both  
handling and testing. Follow guide-  
lines such as JEDEC Publication No.  
108-A (Dec. 1988).  
VOH VOL TYP  
1.0  
0.8  
VOH VOL MIN  
0.6  
When handling and mounting line driver products,  
proper precautions should be taken to avoid exposure  
to electrostatic discharge (ESD). The user should  
adhere to the following basic rules for ESD control:  
0.4  
0
50  
25  
0
25  
50  
75  
100  
125 150  
1. Assume that all electronic components are sensi-  
tive to ESD damage.  
TEMPERATURE (°C)  
12-3468F  
2. Never touch a sensitive component unless properly  
grounded.  
Figure 8. Differential Voltage (VOH – VOL) vs.  
Temperature for 100 Load  
3. Never transport, store, or handle sensitive compo-  
nents except in a static-safe environment.  
8
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and  
Data Sheet  
January 1999  
The HBM ESD threshold voltage presented here was  
obtained by using these circuit parameters.  
ESD Failure Models  
Agere employs two models for ESD events that can  
cause device damage or failure.  
Table 5. Typical ESD Thresholds for Data  
Transmission Drivers  
1. A human-body model (HBM) that is used by most  
of the industry for ESD-susceptibility testing and  
protection-design evaluation. ESD voltage thresh-  
olds are dependent on the critical parameters used  
to define the model. A standard HBM (resistance =  
1500 , capacitance = 100 pF) is widely used and,  
therefore, can be used for comparison purposes.  
Device  
HBM  
Threshold  
CDM  
Threshold  
BDG1A, BDGLA  
BDP1A  
>2500  
>2500  
>3000  
>1000  
>2000  
>2000  
BPPGA, BPNGA,  
BPNPA  
2. A charged-device model (CDM), which many  
believe is the better simulator of electronics manu-  
facturing exposure.  
Table 6. ESD Damage Protection  
ESD Threat Controls  
Tables 5 and 6 illustrate the role these two models play  
in the overall prevention of ESD damage. HBM ESD  
testing is intended to simulate an ESD event from a  
charged person. The CDM ESD testing simulates  
charging and discharging events that occur in produc-  
tion equipment and processes, e.g., an integrated cir-  
cuit sliding down a shipping tube.  
Personnel  
Processes  
Control  
Model  
Wrist straps  
ESD shoes  
Static-dissipative  
materials  
Antistatic flooring  
Air ionization  
Human-body model  
(HBM)  
Charged-device  
model (CDM)  
Latch-Up  
Latch-up evaluation has been performed on the data transmission drivers. Latch-up testing determines if power-  
supply current exceeds the specified maximum due to the application of a stress to the device under test. A device  
is considered susceptible to latch-up if the power supply current exceeds the maximum level and remains at that  
level after the stress is removed.  
Agere performs latch-up testing per an internal test method that is consistent with JEDEC Standard No. 17 (previ-  
ously JC-40.2) CMOS Latch-Up Standardized Test Procedure.”  
Latch-up evaluation involves three separate stresses to evaluate latch-up susceptibility levels:  
1. dc current stressing of input and output pins.  
2. Power supply slew rate.  
3. Power supply overvoltage.  
Table 7. Latch-Up Test Criteria and Test Results  
dc Current Stress of Power Supply  
Power Supply  
Overvoltage  
I/O Pins  
150 mA  
250 mA  
Slew Rate  
Data Transmission  
Driver ICs  
Minimum Criteria  
Test Results  
1 µs  
1.75 × Vmax  
2.25 × Vmax  
100 ns  
Based on the results in Table 6, the data transmission drivers pass the Agere latch-up testing requirements and are  
considered not susceptible to latch-up.  
Agere Systems Inc.  
9
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Outline Diagrams  
16-Pin DIP  
Dimensions are in millimeters.  
L
N
B
1
W
PIN #1 IDENTIFIER ZONE  
H
SEATING PLANE  
0.38 MIN  
2.54 TYP  
0.58 MAX  
5-4410r.2 (C)  
Package Dimensions  
Maximum Width Maximum Width Maximum Height  
Number of  
Pins  
Package  
Description  
Maximum Length  
(L)  
Without Leads  
(B)  
Including Leads  
(W)  
Above Board  
(H)  
(N)  
PDIP3 (Plastic  
Dual-In-Line  
Package)  
16  
20.57  
6.48  
7.87  
5.08  
Note: The dimensions in this outline diagram are intended for informational purposes only. For detailed schematics to assist your design efforts,  
please contact your Agere Sales Representative.  
10  
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Outline Diagrams (continued)  
16-Pin SOIC (SONB/SOG)  
Dimensions are in millimeters.  
L
N
B
1
PIN #1 IDENTIFIER ZONE  
W
H
SEATING PLANE  
0.10  
0.61  
0.51 MAX  
1.27 TYP  
0.28 MAX  
5-4414r.3 (C)  
Package Dimensions  
Maximum Width Maximum Width Maximum Height  
Number of  
Package  
Pins  
Maximum Length  
Description  
Without Leads  
(B)  
Including Leads  
(W)  
Above Board  
(H)  
(N)  
(L)  
SONB (Small-  
Outline, Narrow  
Body)  
16  
10.11  
4.01  
6.17  
1.73  
SOG (Small-  
Outline, Gull-  
Wing)  
16  
10.49  
7.62  
10.64  
2.67  
Note: The dimensions in this outline diagram are intended for informational purposes only. For detailed schematics to assist your design efforts,  
please contact your Agere Sales Representative.  
Agere Systems Inc.  
11  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Outline Diagrams (continued)  
16-Pin SOIC (SOJ)  
Dimensions are in millimeters.  
L
N
B
1
PIN #1 IDENTIFIER ZONE  
W
H
SEATING PLANE  
0.10  
1.27 TYP  
0.51 MAX  
0.79 MAX  
5-4413r.3 (C)  
Package Dimensions  
Maximum Width Maximum Width Maximum Height  
Number of  
Package  
Description  
Pins  
(N)  
Maximum Length  
(L)  
Without Leads  
(B)  
Including Leads  
(W)  
Above Board  
(H)  
SOJ (Small-  
16  
10.41  
7.62  
8.81  
3.18  
Outline, J-Lead)  
Note: The dimensions in this outline diagram are intended for informational purposes only. For detailed schematics to assist your design efforts,  
please contact your Agere Sales Representative.  
12  
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and  
Data Sheet  
January 1999  
The power dissipated in the output is a function of the:  
Termination scheme on the outputs  
Termination resistors  
Power Dissipation  
System designers incorporating Agere data transmis-  
sion drivers in their applications should be aware of  
package and thermal information associated with these  
components.  
Duty cycle of the output  
Package thermal impedance depends on:  
Airflow  
Proper thermal management is essential to the long-  
term reliability of any plastic encapsulated integrated  
circuit. Thermal management is especially important  
for surface-mount devices, given the increasing circuit  
pack density and resulting higher thermal density. A  
key aspect of thermal management involves the junc-  
tion temperature (silicon temperature) of the integrated  
circuit.  
Package type (e.g., DIP, SOIC, SOIC/NB)  
The junction temperature can be calculated using the  
previous equation, after power dissipation levels and  
package thermal impedances are known.  
Figure 10 illustrates the thermal impedance estimates  
for the various package types as a function of airflow.  
This figure shows that package thermal impedance is  
higher for the narrow-body SOIC package. Particular  
attention should, therefore, be paid to the thermal man-  
agement issues when using this package type.  
Several factors contribute to the resulting junction tem-  
perature of an integrated circuit:  
Ambient use temperature  
Device power dissipation  
In general, system designers should attempt to main-  
tain junction temperature below 125 °C. The following  
factors should be used to determine if specific data  
transmission drivers in particular package types meet  
the system reliability objectives:  
Component placement on the board  
Thermal properties of the board  
Thermal impedance of the package  
Thermal impedance of the package is referred to as  
System ambient temperature  
Power dissipation  
Package type  
Θ
ja and is measured in °C rise in junction temperature  
per watt of power dissipation. Thermal impedance is  
also a function of airflow present in system application.  
The following equation can be used to estimate the  
junction temperature of any device:  
Airflow  
Tj = TA + PD  
Θ
ja  
140  
130  
where:  
Tj is device junction temperature (°C).  
TA is ambient temperature (°C).  
PD is power dissipation (W).  
120  
110  
100  
90  
SOIC/NB  
Θ
ja is package thermal impedance (junction to ambi-  
80  
ent°C/W).  
70  
J-LEAD SOIC/GULL WING  
The power dissipation estimate is derived from two fac-  
tors:  
60  
50  
40  
DIP  
Internal device power  
0
200  
400  
600  
800  
1000 1200  
Power associated with output terminations  
AIRFLOW (ft./min.)  
Multiplying ICC times VCC provides an estimate of inter-  
nal power dissipation.  
12-2753F  
Figure 10. Power Dissipation  
Agere Systems Inc.  
13  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Ordering Information  
Part Number  
Intern.  
Term.  
Surge  
Prot.  
Package Type  
Comcode  
Former  
Pkg. Type  
Former  
Part #  
BDG1A16E  
None  
None  
None  
None  
None  
None  
None  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
None  
None  
None  
None  
None  
None  
None  
None  
None  
None  
None  
None  
None  
None  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
220 Ω  
No  
No  
16-pin, Plastic SOJ  
Tape & Reel SOJ  
16-pin, Plastic SOIC  
Tape & Reel SOIC  
Plastic SOIC/NB  
107914186  
107914194  
107914160  
107914178  
107914202  
107914210  
107914004  
107914293  
107914301  
107914319  
107914327  
107914335  
107914228  
107914236  
107914244  
107914251  
107914269  
107914277  
107914285  
107914343  
107914350  
107914368  
107914376  
107914384  
107914392  
107914400  
107914418  
107914426  
107914434  
107914442  
107949745  
107949752  
107949760  
107949778  
107949786  
107949794  
1041  
1041  
1141  
1141  
1241  
1241  
41  
LG, MG, MGA  
LG, MG, MGA  
LG, MG, MGA  
LG, MG, MGA  
LG, MG, MGA  
LG, MG, MGA  
LG, MG, MGA  
LP, MP, MPA  
LP, MP, MPA  
LP, MP, MPA  
LP, MP, MPA  
LP, MP, MPA  
MGL3  
BDG1A16E-TR  
BDG1A16G  
No  
BDG1A16G-TR  
BDG1A16NB  
BDG1A16NB-TR  
BDG1A16P  
No  
No  
No  
Tape & Reel SOIC/NB  
16-pin, Plastic DIP  
16-pin, Plastic SOJ  
Tape & Reel SOJ  
16-pin, Plastic SOIC  
Tape & Reel SOIC  
16-pin, Plastic DIP  
16-pin, Plastic SOJ  
Tape & Reel SOJ  
16-pin, Plastic SOIC  
Tape & Reel SOIC  
Plastic SOIC/NB  
No  
BDP1A16E  
No  
1041  
1041  
1141  
1141  
41  
BDP1A16E-TR  
BDP1A16G  
No  
No  
BDP1A16G-TR  
BDP1A16P  
No  
No  
BDGLA16E  
No  
1041  
1041  
1141  
1141  
1241  
1241  
41  
BDGLA16E-TR  
BDGLA16G  
No  
MGL3  
No  
MGL3  
BDGLA16G-TR  
BDGLA16NB  
BDGLA16NB-TR  
BDGLA16P  
No  
MGL3  
No  
MGL3  
No  
Tape & Reel SOIC/NB  
16-pin, Plastic DIP  
16-pin, Plastic SOJ  
Tape & Reel SOJ  
16-pin, Plastic SOIC  
Tape & Reel SOIC  
Plastic SOIC/NB  
MGL3  
No  
MGL3  
BPNGA16E  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
1041  
1041  
1141  
1141  
1241  
1241  
41  
NG  
BPNGA16E-TR  
BPNGA16G  
NG  
NG  
BPNGA16G-TR  
BPNGA16NB  
BPNGA16NB-TR  
BPNGA16P  
NG  
NG  
Tape & Reel SOIC/NB  
16-pin, Plastic DIP  
16-pin, Plastic SOJ  
Tape & Reel SOJ  
16-pin, Plastic SOIC  
Tape & Reel SOIC  
16-pin, Plastic DIP  
16-pin, Plastic SOJ  
Tape & Reel SOJ  
16-pin, Plastic SOIC  
Tape & Reel SOIC  
16-pin, Plastic DIP  
NG  
NG  
BPNPA16E  
1041  
1041  
1141  
1141  
41  
NP  
BPNPA16E-TR  
BPNPA16G  
NP  
NP  
BPNPA16G-TR  
BPNPA16P  
NP  
NP  
BPPGA16E  
1041  
1041  
1141  
1141  
41  
PG  
BPPGA16E-TR  
BPPGA16G  
PG  
PG  
BPPGA16G-TR  
BPPGA16P  
PG  
PG  
14  
Agere Systems Inc.  
Quad Differential Drivers  
BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA  
Data Sheet  
January 1999  
Notes  
Agere Systems Inc.  
15  
For additional information, contact your Agere Systems Account Manager or the following:  
INTERNET:  
http://www.agere.com  
E-MAIL:  
docmaster@agere.com  
N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286  
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)  
ASIA:  
Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon  
Tel. (852) 3129-2000, FAX (852) 3129-2020  
CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen)  
JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, TAIWAN: (886) 2-2725-5858 (Taipei)  
Tel. (44) 7000 624624, FAX (44) 1344 488 045  
EUROPE:  
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.  
Copyright © 2002 Agere Systems Inc.  
All Rights Reserved  
January 1999  
DS99-144HSI (Replaces DS99-044HSI)  

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