GigaComm (SiGe) SPICE Modeling Kit

AND8077/D
GigaCommt (SiGe) SPICE
Modeling Kit
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APPLICATION NOTE
Objective
The objective of this kit is to provide sufficient circuit
schematic and SPICE parameter information to perform
system level interconnect modeling for devices in
ON Semiconductor’s high performance GigaComm
(Silicon Germanium) logic family. The family has output
edge rates as low as 20 ps and power supply levels of as low
as 2.5 V. The kit is not intended to provide information
necessary to perform circuit level modeling on the
GigaComm (SiGe) devices.
Table 1. Schematics and Netlist Nomenclature
Parameter
VCC
2.5/3.3 V for LVPECL and 0 V for LVECL
VEE
−2.5/−3.3 V for LVPECL and 0 V for LVECL
VBB or VMM
Schematic Information
The kit contains representatives of input and output
schematics, netlists, and waveform used for the
GigaComm family devices. This application note will be
modified as new devices are added. Table 1 describes the
nomenclature used for modeling the schematic and netlist
for GigaComm devices. The subcircuit models, such as
input or output buffers, ESD and package simulate only
device input or output paths. When used with interconnect
models, a complete signal path may be modeled as shown
in Figure 1.
Function Description
Output Voltage Reference
(See Device Data Sheet)
VCS
Internally Generated Voltage
(≈ VEE + 1.1 V ± 50 mV)*
GND
Ground 0 V
IN
INB
Q
QB
True Input to CKT
Inverted Input to CKT
True Output of CKT
Inverted Output of CKT
*Note that the NBSG16VS, NBSG53A, NBSG72A, and NBSG86A
are using VCS to modulate the output amplitude (see device
specifics for more details).
BUFFER
PACKAGE
PACKAGE
ESD
BUFFER
INTERCONNECT
ESD
INPUT BUFFER
OUTPUT BUFFER
Figure 1. Interconnect Model Template
For device modeling, the behavioral LOGIC or gate functionality is not modeled (see Figure 2. DEVICE Model Template)
© Semiconductor Components Industries, LLC, 2014
June, 2014 − Rev. 6
1
Publication Order Number:
AND8077/D
AND8077/D
DEVICE
PACKAGE
BUFFER
BUFFER
ESD
PACKAGE
FUNCTIONAL LOGIC
NOT MODELED
ESD
OUTPUT BUFFER
INPUT BUFFER
Figure 2. DEVICE Model Template
Output Buffer
Two output buffer schematics and netlists are modeled
and can be seen on pages 6 and 8. The package models
with all parasitics should be added for better accuracy. Any
input or output that is driving or being driven by an off chip
signal should include the ESD and package models. Open or
floating pins will not require any ESD or package models.
The output buffer models typically show internal
differential inputs and outputs and should always be
simulated with both output lines terminated, even when only
one line or single ended use is intended. This will balance the
output buffer’s load.
Package
A worst−case model is included to improve the accuracy
of the system model. The package model represents the
parasitics as they are measured a sizable distance from an
AC ground pin. The package models should be placed on all
external inputs to an input model, all external outputs for an
output model and the VCC line. Since the current in the VEE
pin is a constant, a package model for VEE pin is not
necessary. Please note that an internal VCS voltage does not
require a package model.
To shorten and speed up the simulation process, the
simplified package model should be used. The input and
output buffers schematic include the simplified QFN
package model (Figures 4, 5, and 8).
Example of the Typical Interconnect Circuit
The output signal buffer SG_0BUF_01 with the ESD
protection structure and the simplified package model
properly terminated, driving the simplified input structure is
shown in the Figure 13. The circuit provides working
schematics of complete interconnect modeling. The output
waveform observed at the receiver of the interconnect
example is shown in the Figure 14.
Input Buffer
The “SG_INBUF” schematic and netlist are representing
the input structures of devices for GigaComm family
devices. The schematics require the addition of ESD and
package models to be accurate; but are otherwise
functionally correct. It is unnecessary to include an ESD or
Package model for the VBB or VMM type pins of the models
because VBB type input is intended as an internal node for
most applications. If a VBB type input is modeled as an
external node it is usually bypassed because it is a constant
voltage, and adding ESD and Package parameters provide
no additional benefit.
SPICE Netlist
The netlists are organized as a group of subcircuits. In
each subcircuit model netlist, the model name should be
followed by a list of external node interconnects. When
copying “SUBCKT” netlist files to your text editor, use
Adobe® Acrobat® Reader® 4.0 or higher to ensure proper
conversion.
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AND8077/D
SPICE Parameter Information
In addition to the schematics and netlists there is a listing
of the SPICE parameters for the transistors referenced in the
schematics and netlists. These parameters represent a
typical device of a given transistor. Varying the typical
parameters will affect the DC and AC performance of the
structures; but for the type of modeling intended by this note,
the actual delay times are not necessary and are not modeled,
as a result variation of the device parameters are
meaningless. The performance levels are more easily varied
by other methods and will be discussed in the next section.
The resistors referenced in the schematics are polysilicon
and have no parasitic capacitance in the real circuit and none
is required in the model. The schematics display only the
devices needed in the SPICE netlists.
Device Specifics
NBSG16VS
The NBSG16VS is a differential receiver/driver with
variable output amplitude which is controlled by a voltage
applied to VCRTL over the range of VCC to VCC − 2 V. These
VCTRL voltages produce corresponding output amplitudes
over the range of 75 mV to 750 mV (see Data Sheet
Figure 11). The SPICE model for NBSG16VS simulates
seven selected swings within the output amplitude range by
adjusting VCS to one of seven voltages per Table 2.
Simulation tr/tf represents the worst case (fastest) edges. A
DC offset must be applied to all voltages to convert
LVNECL to LVPECL at a 1:1 ratio.
NBSG53A, NBSG72A, and NBSG86A
The NBSG53A, NBSG72A, and NBSG86A are
multifunctional differential GigaComm devices with
Output Level Select (OLS) capability. The OLS input pin is
used to program the peak−to−peak output amplitude
between 0 mV and 800 mV in five discrete steps. When
simulating output of the NBSG53A, NBSG72A, or
NBSG86A, use Table 2, VCS value from line 3, 5, 7, or 10
to obtain desired output amplitude swing.
Modeling Information
The bias drivers for the devices are not included as they
are unnecessary for interconnect simulations and their use
results in a large increase in model complexity and
simulation time. The internal reference voltages (VBB, VCS,
etc.) should be driven with ideal constant voltage sources. If
a GigaComm device is used in positive mode the levels vary
one to one with the power supply; but are constant as a
function of temperature.
The schematics and SPICE parameters will provide a
typical output waveform, which can be seen in
Figures 9 and 10. Note that ESD and package models will
add 5 ps−7 ps to rise and fall time of the output waveform.
Simple adjustments can be made to the models allowing
output characteristics to simulate conditions at or near the
corners of the data book specifications. Consistent
cross–point voltages need to be maintained.
• To adjust rise and fall times:
Produce the desired rise and fall times output slew rates
by adjusting collector load resistors to change the gates
tail current. The VCS voltage will affect the tail current
in the output differential, which will interact with the
load resistor and collector resistor to determine tr and tf
at the output.
• To adjust the VOH:
Adjust the VOH and VOL level by the same amount by
varying VCC. The output levels will follow changes in
VCC at a 1:1 ratio.
• To adjust the VOL only:
Adjust the VOL level independently of the VOH level by
increasing or decreasing the collector load resistance.
Note that the VOH level will also change slightly due to
an IBASE R drop across the collector load resistor. The
VOL can be changed by varying the VCS supply, and
therefore the gate current through the current source
resistor.
Table 2. Required VCS for Selected Output
Amplitudes of the NBSG16VS
Output Amplitude (mV)
75
VEE + 0.865
2.
100
VEE + 0.9
3.
200
VEE + 0.98
4.
300
VEE + 1.06
5.
400
VEE + 1.15
6.
500
VEE + 1.23
7.
600
VEE + 1.3
8.
700
VEE + 1.38
9.
750
VEE + 1.42
10.
800
VEE + 1.46
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VCS (V)
1.
AND8077/D
Summary
The information included in this kit provides adequate
information to run a SPICE level system interconnect
simulation. The block diagram in Figure 3 illustrates a
typical situation, which can be modeled using the
information in this kit. Device input or output models are
presented in Table 3.
Z0 = 50 W
Z0 = 50 W
Minimum Trace Delay
Line Delay
Driver Output
VTT
Receiver Input
Figure 3. Typical Application for I/O SPICE Modeling Kit
Table 3. GigaComm Input/Output Buffer Selector Guide
Input Model
Output Model
NB7L11M
Device
2.5/3.3 V 1:2 Differential Clock/Data Driver with CML Outputs
Function
SG_INBUF
SG_OBUF_02
NB7L14M
2.5/3.3 V 1:4 Differential Clock/Data Driver with CML Outputs
SG_INBUF
SG_OBUF_02
NB7L86M
2.5/3.3 V Differential Smart Gate with CML Outputs
SG_INBUF
SG_OBUF_02
NBSG11
2.5/3.3 V Differential Clock Driver with RSECL Outputs
SG_INBUF
SG_OBUF_01
NBSG14
2.5/3.3 V Differential Receiver/Driver with RSECL Outputs
SG_INBUF
SG_OBUF_01
NBSG16
2.5/3.3 V Differential Receiver/Driver with RSECL Outputs
SG_INBUF
SG_OBUF_01
NBSG16VS
2.5/3.3 V Differential Receiver/Driver with Variable Output Swing
SG_INBUF
SG_OBUF_01*
NBSG16M
2.5/3.3 V Differential CML Receiver/Driver
SG_INBUF
SG_0BUF_02
NBSG53A
2.5/3.3 V Selectable Differential Clock and Data D Flip−Flop/Clock Divider with Reset and OLS
SG_INBUF
SG_OBUF_01*
NBSG72A
3.5/3.3 V Differential CML 2x2 Crosspoint Switch with OLS
SG_INBUF
SG_OBUF_01*
NBSG86A
2.5/3.3 V Differential Smart Gate with OLS
SG_INBUF
SG_OBUF_01*
*Note: See Device Specifics and Table 2 for Details.
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AND8077/D
VCC
VCC
1
D01u
R022 R011
Rb1 ESD
6
120
120
2
Q22
3
Q11
VCS
ESD
8
92 D01d
ESD
4
TNSGB
D011u
R01
D011d
10 L01
39.5m
ESD
0
VCC
R33
69
D020u
Rb2 ESD
7
92
VEE
D02u
ESD
R02
9
D020d
Input Buffer
ESD
V1 = 2.3
V2 = 2.1
TD = 1 n
TR = 0.025 n
TF = 0.025 n
PW = 0.075 n
PER = 0.2 n
0
QFN Package
Input ESD
IN
VCC
V1 = 2.1
V2 = 2.3
0 TD = 1 n
TR = 0.025 n
TF = 0.025 n
PW = 0.075 n
PER = 0.2 n
+ V2 V
CC
−
3.3 Vdc
0
VEE
VEE +
+
0 Vdc
−
−
0
VCS
VCS +
1.18 Vdc
−
0
VTT
VTT +
1.18 Vdc
−
0
0
Figure 4. Simplified Input Circuitry − SG_INBUF
.SUBCKT SG_INBUF IN INB VCC VEE VCS
Q_Q11
3 6 4 TNSGB
Q_Q22
2 7 4 TNSGB
Q_Q33
4 VCS 5 TNSGB
R_R011
3 VCC 120
R_R022
2 VCC 120
R_R33
VEE 5 69
R_Rb1
6 8 92
R_Rb2
9 7 92
R_R01
8 10 39.5m
R_R02
9 11 39.5m
L_L01
10 IN 753.3pH
L_L02
11 INB 753.3pH
D_D01d
VEE 8 ESD
D_D011d
VEE 8 ESD
D_D02d
VEE 9 ESD
D_D020d
VEE 9 ESD
D_D01u
8 VCC ESD
D_D011u
8 VCC ESD
D_D02u
9 VCC ESD
D_D020u
9 VCC ESD
C_C01a
0 10 51.12f
C_C02a
0 11 51.12f
C_C01b
0 IN 62.48f
C_C02b
0 INB 62.48f
V_VCC
VCC 0 3.3Vdc
V_VCS
VCS 0 1.18Vdc
V_VEE
VEE 0 0Vdc
V_V1
IN 0 PULSE 2.3 2.1 1n 0.025n 0.025n 0.075n 0.2n
V_V2
INB 0 PULSE 2.1 2.3 1n 0.025n 0.025n 0.075n 0.2n
.END SG_INBUF
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IN
753.3 pH
C02a
51.12f
39.5m
D02d
ESD
11 L02
VEE
+ V1
−
IN
C01b
62.48f
VEE
TNSGB
Q33
TNSGB
5
IN
IN
753.3 pH
C01a
51.12f
C02b
62.48f
IN
AND8077/D
VCC
R6
10
11
VCC
Q5
TNSGC
1
2
VCS
ESD
5
D10d
D100d
ESD
ESD
R10
7 L10
IN
D111u
ESD
4
D111d
R3
69
VEE
R11
39.5m
VEE
0
8
L11
753.3 pH
C11a
51.12f
T2
Q
C11b
62.48f
0
0
QFN Package
Output ESD
V
Output Buffer
C10b
62.48f
0
D11d
ESD
ESD
Q
51.12f
D11u
ESD
6
T1
753.3 pH
C10a
39.5m
VEE
VCC
TNSGB
3
Q3
TNSGB
TNSGB
ESD
Q2
Q1
IN
Q4
TNSGC
D100u
D10u
IN
IN
V1 = 2.3
V2 = 2.1
TD = 1 n
TR = 0.025 n
TF = 0.025 n
PW = 0.475 n
PER = 1 n
V
R2
120
R1
120
VCC
+ V1
+ V2
−
−
V1 = 2.1
V2 = 2.3
TD
=1n
0
TR = 0.025 n
TF = 0.025 n
PW = 0.475 n
PER = 1 n
0
VEE
VCC +
3.3 Vdc
VEE
0 Vdc
−
0
+
−
VTT
VCS
VCS +
1.18 Vdc
−
0
VTT +
1.3 Vdc
0
R4
50
R5
50
−
0
VTT
Typical
Termination
Figure 5. Simplified Output Signal Buffer Circuitry − SG_OBUF_01
.SUBCKT SG_OBUF_01 IN INB VCC VEE VTT VCS Q QB
Q_Q1
1 IN 3 TNSGB
Q_Q2
2 INB 3 TNSGB
Q_Q3
3 VCS 4 TNSGB
Q_Q4
VCC 2 6 TNSGC
Q_Q5
VCC 1 5 TNSGC
R_R1
1 11 120
R_R2
2 11 120
R_R3
VEE 4 69
R_R4
10 VTT 50
R_R5
9 VTT 50
R_R6
11 VCC 10
R_R10
5 7 39.5m
R_R11
6 8 39.5m
C_C10b
0 QB 62.48f
C_C11a
0 8 51.12f
C_C11b
0 Q 62.48f
C_C10a
0 7 51.12f
L_L10
7 QB 753.3pH
L_L11
8 Q 753.3pH
D_D111d
VEE 6 ESD
D_D111u
6 VCC ESD
D_D100u
5 VCC ESD
D_D10u
5 VCC ESD
D_D11u
6 VCC ESD
D_D100d
VEE 5 ESD
D_D10d
VEE 5 ESD
D_D11d
VEE 6 ESD
V_VCC
VCC 0 3.3Vdc
V_VCS
VCS 0 1.18Vdc
V_VTT
VTT 0 1.3Vdc
V_VEE
VEE 0 0Vdc
V_V1
IN 0 PULSE 2.3 2.1 1n 0.025n 0.025n 0.075n 0.2n
V_V2
INB 0 PULSE 2.1 2.3 1n 0.025n 0.025n 0.075n 0.2n
T_T1
QB 0 10 0 Z0=50 TD=80ps
T_T2
Q 0 9 0 Z0=50 TD=80ps
.END SG_OBUF_01
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AND8077/D
2.2980
2.2800
2.100
2.000
1.900
1.817
14.13 ns
14.40 ns
14.80 ns
15.20 ns
TIME
15.60 ns
16.00 ns
Figure 6. Typical Output Waveform of the SG_OBUF_01 at 1 GHz
(tr = 34 ps, tf = 32 ps, Voutpp = 451 mV, Voh = 2.288 V, Vol=1.835 V)
2.2200
2.2000
2.1000
2.0000
1.9000
1.838
15.208 ns
15.300 ns
15.400 ns
15.500 ns
15.600 ns
TIME
Figure 7. Typical Output Waveform of the SG_OBUF_01 at 5 GHz
(tr = 32 ps, tf = 30 ps, Voutpp = 422 mV, Voh = 2.26 V, Vol = 1.84 V)
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15.700 ns
AND8077/D
Output Buffer
Typical
Termination
VCC
QFN Package
Output ESD
VCC
VCC
ESD
ESD
R2
50
R1
50
1
D10d
D100d
ESD
ESD
2
R10
5 L10
753.3 pH
Q
V
C10b
62.48f
C10a
39.5m
51.12f
VEE
0
Q2
Q1
TNSGB
IN
VCC
IN
TNSGB
3
D111u
D11u
ESD
ESD
D111d
4
Q4
TNSGB
R11
39.5m
D11d
ESD
ESD
Q3
6
L11
Q
753.3 pH
C11a
51.12f
C11b
62.48f
TNSGB
VEE
0
VEE
VCC
VEE
VCC +
3.3 Vdc
−
0 Vdc
0
+
−
0
IN
IN
VEE
V1 = 2.3
V2 = 2.1
TD = 1 n
TR = 0.025 n
TF = 0.025 n
PW = 0.475 n
PER = 1 n
+ V1
−
V1 = 2.1
V2 = 2.3
0 TD = 1 n
TR = 0.025 n
TF = 0.025 n
PW = 0.475 n
PER = 1 n
R4
50
R5
50
D100u
D10u
+ V2
−
0
Figure 8. Simplified Output Signal Buffer Circuitry − SG_OBUF_02
.SBUCKT SG_OBUF02 IN INB VEE VCC VCS Q QB
Q_Q1
1 IN 3 TNSGB
Q_Q2
2 INB 3 TNSGB
Q_Q3
3 4 VEE TNSGB
Q_Q4
4 4 VEE TNSGB
R_R1
1 VCC 50
R_R2
2 VCC 50
R_R3
QB VCC 50
R_R4
Q VCC 50
R_R10
1 5 39.5m
R_R11
2 6 39.5m
L_L10
5 QB 753.3pH
L_L11
6 Q 753.3pH
C_C10b
0 QB 62.48f
C_C10a
0 5 51.12f
C_C11a
0 6 51.12f
C_C11b
0 Q 62.48f
D_D10d
VEE 1 ESD
D_D11d
VEE 2 ESD
D_D111u
2 VCC ESD
D_D111d
VEE 2 ESD
D_D100u
1 VCC ESD
D_D10u
1 VCC ESD
D_D11u
2 VCC ESD
D_D100d
VEE 1 ESD
V_VEE
VEE 0 0Vdc
V_VCC
VCC 0 3.3Vdc
I_I1
VCC 4 DC 16mAdc
V_V1
IN 0 PULSE 2.3 2.1 1n 0.025n 0.025n 0.475n 1n
V_V2
INB 0 PULSE 2.1 2.3 1n 0.025n 0.025n 0.475n 1n
.END SG_OBUF02
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V
AND8077/D
3.2970
3.2800
3.1000
3.000
2.9130
28.541 ns
29.000 ns
29.500 ns
30.000 ns
30.500 ns
31.000 ns 31.387 ns
TIME
Figure 9. Typical Output Waveform of the SG_OBUF_02 at 1 GHz
(tr = 30 ps, tf = 28 ps, Voutpp = 354 mV, Voh = 3.29 V, Vol = 2.93 V)
3.3000
3.2000
3.1000
3.0000
2.9060
24.9 ns
25.0 ns
25.1 ns
25.2 ns
25.3 ns
TIME
Figure 10. Typical Output Waveform of the SG_OBUF_02 at 5 GHz
(tr = 29 ps, tf = 28 ps, Voutpp = 364 mV, Voh = 3.29 V, Vol = 2.92 V)
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25.4 ns
AND8077/D
VCC
RB1
92
*RPU
36.5 k
D1
D2 D3
IN
PAD
D3
*RPD
75 k
D4
Pulldown Resistor
VEE
* See device data sheet
Figure 11. Input ESD
.SUBCKT IN_ESD VCC VEE IN PAD
D1
IN
VCC
ESD
D2
IN
VCC
ESD
D3
VEE
IN
ESD
D4
VEE
IN
ESD
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
RPD
IN
VEE
75K
RPU
IN
VCC
36.5K
RB1
IN
PAD
92
.ENDS IN_ESD
VCC
PAD
D1
D2
D3
D4
OUT
VEE
Figure 12. Output ESD
.SUBCKT OUT_ESD VCC VEE OUT
D1
OUT
VCC
ESD
D2
OUT
VCC
ESD
D3
VEE
OUT
ESD
D4
VEE
OUT
ESD
.ENDS OUT_ESD
***********Transistor and Diod Models for GigaComm********************
.MODEL TNSGC NPN (IS=1.47e−16 BF=180 NF=1 VAF=96.3 IKF=1.62e−01
ISE=2.96e−15 NE=2.5 BR=20.2 VAR=2.76 IKR=1.34e−02 ISC=2.14e−16
NC=1.426 RB=25 IRB=1.50e−03 RBM=4 RE=1 RC=7 CJE=3.34e−15
VJE=.8867 MJE=.2868 TF=2.00e−12 ITF=0.25e−01 XTF=0.7 VTF=0.35 PTF=20 TR=0.5e−9 CJC=1.08e−15
VJC=0.632 MJC=0.301 XCJC=.3 CJS=8.12e−16 VJS=.4193 MJS=0.256 EG=1.119 XTI=3.999 XTB=0.8826
FC=0.9)
.MODEL TNSGB NPN (IS=2.18e−17 BF=179 NF=1 VAF=96.5 IKF=2.42e−02
ISE=3.83e−16 NE=2.5 BR=20.4 VAR=2.76 IKR=1.98e−03 ISC=2.91e−17
NC=1.426 RB=55 IRB=1.12e−04 RBM=48 RE=6 RC=11 CJE=4.98e−16
VJE=.8867 MJE=.2868 TF=2.00e−12 ITF=0.4e−02 XTF=0.7 VTF=0.6 PTF=20
TR=0.5e−9 CJC=1.55e−16 VJC=0.632 MJC=0.301 XCJC=0.3 CJS=1.71e−16 VJS=.4193 MJS=0.256
EG=1.119 XTI=3.999 XTB=0.8826 FC=0.9)
.MODEL ESD D (IS=9.99E−21 CJO=65.2E−15 RS=50.1 VJ=0.82 M=0.25 BV= 35)
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AND8077/D
VCC
1
R6
10
VCC
R2
120
R1
120
3
4
ESD
Q4
TNSGC
D100d
ESD
ESD
IN
D111u
ESD
D111d
R3
69
VEE
17
Q
753.3 pH
C11a
51.12f
C11b
62.48f
0
0
QFN Package
ESD
13
Q11
R01
D011d
92 D01d
ESD
18
39.5m
ESD
11 L01
D
753.3 pH
C01a
51.12f
C01b
62.48f
VEE
TNSGB
Q33
TNSGB
19
0
VCC
R33
69
D020u
Rb2 ESD
21
92
VEE
D02u
ESD
R02
14
D020d
D02d
ESD
39.5m
ESD
12 L02
Input Buffer
D
753.3 pH
C02a
51.12f
VEE
C02b
62.48f
0
Input ESD
QFN Package
IN
IN
V1 = 2.3
V2 = 2.1
TD = 1 n
TR = 0.025 n
TF = 0.025 n
PW = 0.475 n
PER = 1 n
T2
L11
10
D011u
D01u
Rb1 ESD
20
120
0
VCC
R022 R011
VCS
39.5m
Output ESD
VCC
15
TNSGB
R11
VEE
Output Buffer
C10b
62.48f
C10a
0
D11d
ESD
ESD
Q
51.12f
D11u
ESD
8
6
120
16
Q22
39.5m
+ V1
−
T1
753.3 pH
V
VCS
9 L10
VEE
VCC
TNSGB
5
Q3
TNSGB
TNSGB
R10
ESD
7
D10d
Q2
Q1
IN
D100u
D10u
Q5
TNSGC
V
2
V1 = 2.1
V2 = 2.3
TD
=1n
0
TR = 0.025 n
TF = 0.025 n
PW = 0.475 n
PER = 1 n
VCC
+ V2
−
VCC +
3.3 Vdc
0
−
0
VEE
VEE +
0 Vdc
−
VTT
VCS
VCS +
1.18 Vdc
−
0
VTT +
1.3 Vdc
−
0
0
Figure 13. Example of the Typical Interconnect Circuit
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11
R4
50
R5
50
VTT
Typical
Termination
AND8077/D
2.2000
2.0000
1.0000
13.626 ns
14.000 ns
14.500 ns
15.000 ns
TIME
Figure 14. Output Waveform of the Interconnect Example Shown in Figure 13
(Frequency = 1 GHz, tr = 49 ps, tf = 53 ps, Voutpp = 455 mV)
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12
15.496 ns
AND8077/D
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
* Package: 16 pin QFN
* Model for 16 pins
*
* Note:
* 1. The model assumes ground plane is 15 mil below package
* 2. The model assumes flag is grounded
* 3. The model is based on GigaComm device 1.475mm x 1.475mm
* 4. Wire bond parasitics are lumped with lead frame post.
* 5. Lump element equivalent model valid up to 10 Ghz
***********************************************************
* Lead Frame drawing: ASAT 3mm x 3mm QFN
* Case Outline:
* LC file : 16qfn3x3.LC
***********************************************************
*
* Package: GigaComm 16 pin 3mm x 3mm QFN
* Model for 16 pins
*
*
* Conductor number−pin designation cross reference:
*
*
Conductor
Pin
*
1
1
*
2
2
*
3
3
*
4
4
*
5
5
*
6
6
*
7
7
*
8
8
*
9
9
*
10
10
*
11
11
*
12
12
*
13
13
*
14
14
*
15
15
*
16
16
*
* number of lumps: 1
* COMPRESSION OF SUBCIRCUITS PERFORMED: discard ratio is 0.050
*
.SUBCKT PACKAGE N01I N01O N02I N02O N03I N03O N04I N04O
+ N05I N05O N06I N06O N07I N07O N08I N08O N09I N09O
+ N10I N10O N11I N11O N12I N12O N13I N13O N14I N14O
+ N15I N15O N16I N16O BD_GND
R01
N01I
N01C
4.300e−02
C01a
N01C
BD_GND
6.674e−14
C01b
N01O
BD_GND
8.157e−14
L01
N01C
N01O
8.418e−10
R02
N02I
N02
3.950e−02
C02a
N02C
BD_GND
5.153e−14
C02b
N02O
BD_GND
6.298e−14
L02
N02C
N02O
7.557e−10
R03
N03I
N03C
3.950e−02
C03a
N03C
BD_GND
5.364e−14
C03b
N03O
BD_GND
6.556e−14
L03
N03C
N03O
7.550e−10
R04
N04I
N04C
4.300e−02
C04a
N04C
BD_GND
6.687e−14
C04b
N04O
BD_GND
8.173e−14
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13
AND8077/D
L04
R05
C05a
C05b
L05
R06
C06a
C06b
L06
R07
C07a
C07b
L07
R08
C08a
C08b
L08
R09
C09a
C09b
L09
R10
C10a
C10b
L10
R11
C11a
C11b
L11
R12
C12a
C12b
L12
R13
C13a
C13b
L13
R14
C14a
C14b
L14
R15
C15a
C15b
L15
R16
C16a
C16b
L16
K0102
C0102a
C0102b
K0103
K0115
K0116
C0116a
C0116b
K0203
C0203a
C0203b
K0204
K0216
N04C
N05I
N05C
N05O
N05C
N06I
N06C
N06O
N06C
N07I
N07C
N07O
N07C
N08I
N08C
N08O
N08C
N09I
N09C
N09O
N09C
N10I
N10C
N10O
N10C
N11I
N11C
N11O
N11C
N12I
N12C
N12O
N12C
N13I
N13C
N13O
N13C
777N14I
N14C
N14O
N14C
N15I
N15C
N15O
N15C
N16I
N16C
N16O
N16C
L01
N01C
N01O
L01
L01
L01
N01C
N01O
L02
N02C
N02O
L02
L02
N04O
N05C
BD_GND
BD_GND
N05O
N06C
BD_GND
BD_GND
N06O
N07C
BD_GND
BD_GND
N07O
N08C
BD_GND
BD_GND
N08O
N09C
BD_GND
BD_GND
N09O
N10C
BD_GND
BD_GND
N10O
N11C
BD_GND
BD_GND
N11O
N12C
BD_GND
BD_GND
N12O
N13C
BD_GND
BD_GND
N13O
N14C
BD_GND
BD_GND
N14O
N15C
BD_GND
BD_GND
N15O
N16C
BD_GND
BD_GND
N16O
L02
N02C
N02O
L03
L15
L16
N16C
N16O
L03
N03C
N03O
L04
L16
8.427e−10
4.300e−02
6.633e−14
8.107e−14
8.451e−10
3.950e−02
5.202e−14
6.358e−14
7.560e−10
3.950e−02
5.243e−14
6.408e−14
7.551e−10
4.300e−02
6.682e−14
8.168e−14
8.432e−10
4.300e−02
6.606e−14
8.074e−14
8.418e−10
3.950e−02
5.112e−14
6.248e−14
7.533e−10
3.950e−02
5.166e−14
6.314e−14
7.524e−10
4.300e−02
6.786e−14
8.294e−14
8.415e−10
4.300e−02
6.628e−14
8.101e−14
8.426e−10
3.950e−02
5.238e−14
6.402e−14
7.536e−10
3.950e−02
5.310e−14
6.490e−14
7.514e−10
4.300e−02
6.692e−14
8.179e−14
8.412e−10
0.1711
1.740e−14
2.126e−14
0.0676
0.0549
0.1085
4.797e−15
5.863e−15
0.1574
1.622e−14
1.983e−14
0.0690
0.0555
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14
AND8077/D
K0304
L03
C0304a
N03C
C0304b
N03O
K0305
L03
K0405
L04
C0405a
N04C
C0405b
N04O
K0406
L04
K0506
L05
C0506a
N05C
C0506b
N05O
K0507
L05
K0607
L06
C0607a
N06C
C0607b
N06O
K0608
L06
K0708
L07
C0708a
N07C
C0708b
N07O
K0709
L07
K0809
L08
C0809a
N08C
C0809b
N08O
K0810
L08
K0910
L09
C0910a
N09C
C0910b
N09O
K0911
L09
K1011
L10
C1011a
N10C
C1011b
N10O
K1012
L10
K1112
L11
C1112a
N11C
C1112b
N11O
K1113
L11
K1213
L12
C1213a
N12C
C1213b
N12O
K1214
L12
K1314
L13
C1314a
N13C
C1314b
N13O
K1315
L13
K1415
L14
C1415a
N14C
C1415b
N14O
K1416
L14
K1516
L15
C1516a
N15C
C1516b
N15O
.ENDS PACKAGE
*
*
L04
N04C
N04O
L05
L05
N05C
N05O
L06
L06
N06C
N06O
L07
L07
N07C
N07O
L08
L08
N08C
N08O
L09
L09
N09C
N09O
L10
L10
N10C
N10O
L11
L11
N11C
N11O
L12
L12
N12C
N12O
L13
L13
N13C
N13O
L14
L14
N14C
N14O
L15
L15
N15C
N15O
L16
L16
N16C
N16O
0.1713
1.744e−14
2.131e−14
0.0563
0.1098
4.747e−15
5.803e−15
0.0560
0.1723
1.739e−14
2.125e−14
0.0695
0.1578
1.633e−14
1.996e−14
0.0676
0.1708
1.748e−14
2.136e−14
0.0551
0.1085
4.797e−15
5.863e−15
0.0555
0.1711
1.734e−14
2.119e−14
0.0684
0.1574
1.613e−14
1.972e−14
0.0673
0.1711
1.751e−14
2.139e−14
0.0558
0.1097
4.797e−15
5.863e−15
0.0561
0.1715
1.748e−14
2.136e−14
0.0678
0.1573
1.636e−14
2.000e−14
0.0682
0.1707
1.748e−14
2.137e−14
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15
AND8077/D
GigaComm is a trademark of Semiconductor Components Industries, LLC (SCILLC).‘
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ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
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16
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AND8077/D