ANALOG DEVICES AD8178 Service Manual
450 MHz, Triple 16 × 5
S
FEATURES
Large, triple 16 × 5 high speed, nonblocking switch array
Pin compatible with the
arrays) and the
Differential or single-ended operation
Supports sync-on common-mode and sync-on color
operating modes
RGB and HV outputs available for driving monitor directly
G = +4 operation (differential input to differential output)
Flexible power supplies: +5 V or ±2.5 V
Logic ground for convenient control interface
Serial or parallel programming of switch array
High impedance output disable allows connection of
multiple devices with minimal loading on output bus
Adjustable output CM and black level through external pins
Excellent ac performance
Bandwidth: 450 MHz
Slew rate: 1650 V/μs
Settling time: 4 ns to 1% to support 1600 × 1200 @ 85Hz
Low power of 2.3 W
Low all hostile crosstalk
−82 dB @ 5 MHz
−47 dB @ 500 MHz
Wide input common-mode range of 4 V
Reset pin allows disabling of all outputs
Fully populated 26 × 26 ball PBGA package
(27 mm × 27 mm, 1 mm ball pitch)
Convenient grouping of RGB signals for easy routing
APPLICATIONS
RGB video switching
KVM
Professional video
GENERAL DESCRIPTION
The AD8178 is a high speed, triple 16 × 5 video crosspoint switch
matrix. It supports 1600 × 1200 RGB displays @ 85 Hz refresh rate,
by offering a 450 MHz bandwidth and a slew rate of 1650 V/µs.
With −82 dB of crosstalk and −90 dB isolation (@ 5 MHz), the
AD8178 is useful in many high speed video applications.
The AD8178 supports two modes of operation: differential-in
to differential-out mode with sync-on CM signaling passed
through the switch and differential-in to differential-out mode
with CM signaling removed through the switch. The output CM
and black level can be conveniently set via external pins.
AD8175 and AD8176 (16 × 9 switch
AD8177 (16 × 5 switch array)
Video Crosspoint Switch
AD8178
FUNCTIONAL BLOCK DIAGRAM
D0 D1 D2 D3 D4VPOSVNEGVDD DGND
AD8178
SERIN
ER/PAR
WE
CLK
CS
UPDATE
RST
CMENC
R
G
B
16 x RGB
CHANNELS
R
G
B
1
0
INPUT
RECEIVER
G = +2
2
2
2
2
2
2
VBLK VOCM_CMENCON VOCM_CMENCOFF
45-BIT SHIFT
REGISTER WITH
5-BIT PARALLEL
LOADING
25
PARALLEL L ATCH
25
DECODE
5 × 5:16 DECODERS
80
SWITCH
MATRIX
G = +2
20
NO
CONNECT
OUTPUT
BUFFER
G = +1
5
ENABLE/DISABL E
Figure 1.
The outputs can be used single-ended in conjunction with
decoded H and V outputs to drive a monitor directly.
The independent output buffers of the AD8178 can be placed
into a high impedance state to create larger arrays by paralleling
crosspoint outputs. Inputs can be paralleled as well. The AD8178
offers both serial and a parallel programming modes.
The AD8178 is packaged in a fully-populated 26 × 26 ball
PBGA package and is available over the extended industrial
temperature range of −40°C to +85°C.
A0
A1
A2
CLR
SEROUT
SET INDIVIDUAL, OR
RESET ALL OUTPUTS T O OFF
2
2
2
2
2
2
R
G
B
H
V
CHANNELS
5 x RGB, HV
R
G
B
H
V
06608-001
0
Rev.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved.
AD8178
TABLE OF CONTENTS
Features.............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics (Serial Mode) ....................................... 5
Timing Characteristics (Parallel Mode).................................... 6
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
Power Dissipation......................................................................... 7
ESD Caution.................................................................................. 7
REVISION HISTORY
7/07—Revision 0: Initial Version
Pin Configurations and Function Descriptions............................8
Truth Table and Logic Diagram ............................................... 17
Equivalent Circuits......................................................................... 19
Typical Performance Characteristics........................................... 21
Theory of Operation ...................................................................... 26
Applications Information.............................................................. 27
Operating Modes........................................................................ 27
Programming.............................................................................. 28
Differential and Single-Ended Operation............................... 29
Outline Dimensions....................................................................... 38
Ordering Guide .......................................................................... 38
Rev. 0 | Page 2 of 40
AD8178
SPECIFICATIONS
VS = ± 2.5 V at TA = 25°C, G = +4, RL = 100 Ω (each output), VBLK = 0 V, output CM voltage = 0 V, differential I/O mode, unless
otherwise noted.
Table 1.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth 200 mV p-p 450 MHz
2 V p-p 420 MHz
Gain Flatness 0.1 dB, 200 mV p-p 17 MHz
Propagation Delay 2 V p-p 1.3 ns
Settling Time 1% , 2 V step 4 ns
Slew Rate, Differential Output 2 V step 1650 V/μs
2 V step, 10% to 90% 1450 V/μs
Slew Rate, RGB Common Mode 1 V step , 10% to 90% 300 V/μs
Slew Rate, HV Outputs Rail-to-rail, TTL load 400 V/μs
NOISE/DISTORTION PERFORMANCE
Crosstalk, All Hostile f = 5 MHz −82 dB
f = 10 MHz −74 dB
f = 100 MHz −56 dB
f = 500 MHz −47 dB
Off Isolation, Input-Output f = 10 MHz, RL = 100 Ω, one channel −90 dB
Input Voltage Noise 0.01 MHz to 50 MHz 50 nV/√Hz
DC PERFORMANCE
Gain Error 1 %
Gain Matching R, G, B same channel 0.5 %
Gain Temperature Coefficient 32 ppm/°C
OUTPUT CHARACTERISTICS
Output Offset Voltage CMENC on or off 20 mV
Temperature coefficient 58 μV/°C
Output Offset Voltage,
RGB Common Mode
Temperature coefficient −16 μV/°C
Output Impedance Enabled, differential 1.5 Ω
Disabled, differential 2.7 kΩ
Output Disable Capacitance Disabled 2 pF
Output Leakage Current Disabled 1 μA
Output Voltage Range No load, differential 4 V p-p
Output Current Short circuit 45 mA
INPUT CHARACTERISTICS
Input Voltage Range,
Differential Mode
Input Voltage Range,
Common Mode
CMR, RGB Input ΔV
ΔV
CM Gain, RGB Input ΔV
ΔV
Input Capacitance Any switch configuration 2 pF
Input Resistance Differential 3.33 kΩ
Input Offset Current 1 μA
CMENC on or off 10 mV
1 V p-p
V
= 1 V p-p ±2.25 V p-p
IN
/ΔV
, ΔV
OUT, DM
OUT, DM
OUT, CM
OUT, CM
/ΔV
/ΔV
/ΔV
IN, CM
IN, CM
IN, CM
IN, CM
= ±0.5 V, CMENC off –62 dB
IN, CM
, ΔV
= ±0.5 V, CMENC on −45 dB
IN, CM
, ΔV
= ±0.5 V CMENC off −70 dB
IN, CM
, ΔV
= ±0.5 V, CMENC on 0 dB
IN, CM
Rev. 0 | Page 3 of 40
AD8178
Parameter Conditions Min Typ Max Unit
SWITCHING CHARACTERISTICS
Enable On Time
Switching Time, 2 V Step
UPDATE to 50% output
50%
UPDATE to 50% output
50%
POWER SUPPLIES
Supply Current V
, outputs enabled, no load 460 mA
POS
Outputs disabled 290 mA
V
, outputs enabled, no load 460 mA
NEG
Outputs disabled 290 mA
D
, outputs enabled, no load 4 mA
VDD
Supply Voltage Range 4.5 to 5.5 V
PSR ΔV
ΔV
OUT, DM
OUT, DM
/ΔV
/ΔV
POS
NEG
, ΔV
= ±0.5 V −55 dB
POS
, ΔV
= ±0.5 V −55 dB
NEG
OPERATING TEMPERATURE RANGE
Temperature Range Operating (still air) −40 to +85 °C
θJA Operating (still air) 15 °C/W
80 ns
70 ns
Rev. 0 | Page 4 of 40
AD8178
TIMING CHARACTERISTICS (SERIAL MODE)
Table 2.
Limit
Parameter Symbol Min Typ Max Unit
Serial Data Setup Time t1 40 ns
t
CLK Pulse Width
Serial Data Hold Time t3 50 ns
CLK Pulse Separation
CLK to UPDATE Delay
UPDATE Pulse Width
CLK to SEROUT Valid
Propagation Delay, UPDATE to Switch On
Data Load Time, CLK = 5 MHz, Serial Mode
RST Time
60 ns
2
t
140 ns
4
t
10 ns
5
t
90 ns
6
t
120 ns
7
80 ns
9 μs
140 200 ns
CLK
SERIN
1 = LATCHED
UPDATE
0 = TRANSPARENT
SEROUT
t
1
0
t1t
1
OUT4 (D4)
0
1
0
2
3
t
7
t
4
LOAD DATA INTO
SERIAL REGISTER
ON FALLING EDGE
OUT4 (D3) OUT0 (D0)
TRANSFER DATA FROM SERIAL
REGISTER TO PARALLEL
LATCHES DURING LOW LEVEL
t
5
t
6
06608-002
Figure 2. Timing Diagram, Serial Mode
Table 3. Logic Levels, VDD = 3.3 V
VIH VIL V
SER/PAR, CLK,
SERIN, UPDATE
SER/PAR, CLK,
SERIN, UPDATE
V
OH
I
OL
SEROUT SEROUT
I
IH
SER/PAR, CLK,
SERIN, UPDATE
I
IL
SER/PAR, CLK,
SERIN, UPDATE
I
OH
OL
SEROUT SEROUT
2.0 V min 0.6 V max 2.8 V min 0.4 V max 20 μA max –20 μA max –1 mA min 1 mA min
Table 4. H and V Logic Levels, V
VOH VOL I
= 3.3 V
DD
I
OH
OL
2.7 V min 0.5 V max –3 mA max 3 mA max
RST
Table 5.
VIH VIL I
Logic Levels, VDD = 3.3 V
I
IH
IL
2.0 V min 0.6 V max −60 μA max −120 μA max
CS
Table 6.
VOH VOL I
Logic Levels, VDD = 3.3 V
I
IH
OL
2.0 V min 0.6 V max 100 μA max 40 μA max
Rev. 0 | Page 5 of 40
AD8178
TIMING CHARACTERISTICS (PARALLEL MODE)
Table 7.
Limit
Parameter Symbol Min Typ Max Unit
Parallel Data Setup Time t1 80 ns
t
WE Pulse Width
Parallel Hold Time t3 150 ns
WE Pulse Separation
WE to UPDATE Delay
UPDATE Pulse Width
Propagation Delay, UPDATE to Switch On
RST Time
WE
D0 TO D4
A0 TO A2
1 = LATCHED
0 = TRANSPARENT
UPDATE
t
1
0
t1t
1
0
2
3
t
4
Figure 3. Timing Diagram, Parallel Mode
110 ns
2
t
90 ns
4
t
10 ns
5
t
90 ns
6
80 ns
140 200 ns
t
t
5
6
6608-003
Table 8. Logic Levels, VDD = 3.3 V
VIH VIL V
SER/PAR, WE,
D0, D1, D2, D3,
D4, A0, A1, A2,
A3,
UPDATE
SER/PAR, WE,
D0, D1, D2, D3,
D4, A0, A1, A2,
A3,
UPDATE
V
OH
I
OL
SEROUT SEROUT
I
IH
SER/PAR, WE,
D0, D1, D2, D3,
D4, A0, A1, A2,
A3,
UPDATE
I
IL
SER/PAR, WE,
D0, D1, D2, D3,
D4, A0, A1, A2,
A3,
UPDATE
I
OH
OL
SEROUT SEROUT
2.0 V min 0.6 V max Disabled Disabled 20 μA max −20 μA max Disabled Disabled
Table 9. H and V Logic Levels, V
VOH VOL I
= 3.3 V
DD
I
OH
OL
2.7 V min 0.5 V max –3 mA max 3 mA max
RST
Table 10.
VIH VIL I
Logic Levels, VDD = 3.3 V
I
IH
IL
2.0 V min 0.6 V max −60 μA max −120 μA max
Table 11.
VOH VOL I
CS
Logic Levels, VDD = 3.3 V
I
IH
OL
2.0 V min 0.6 V max 100 μA max 40 μA max
Rev. 0 | Page 6 of 40
AD8178
ABSOLUTE MAXIMUM RATINGS
Table 12.
Parameter Rating
Analog Supply Voltage (V
Digital Supply Voltage (VDD – D
Ground Potential Difference
(V
– D
GND
)
NEG
Maximum Potential Difference
– V
NEG
)
(V
DD
Common-Mode Analog Input Voltage
POS
– V
) 6 V
NEG
) 6 V
GND
+0.5 V to –2.5 V
8 V
– 0.5 V) to
(V
NEG
+ 0.5 V)
(V
POS
Differential Analog Input Voltage ±2 V
Digital Input Voltage VDD
Output Voltage
– 1 V) to (V
POS
NEG
+ 1 V)
(V
(Disabled Analog Output)
Output Short-Circuit Duration Momentary
Storage Temperature Range −65°C to +125°C
Operating Temperature Range −40°C to +85°C
Lead Temperature
300°C
(Soldering, 10 sec)
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
POWER DISSIPATION
The AD8178 is operated with ±2.5 V or +5 V supplies and can
drive loads down to 100 , resulting in a large range of possible
power dissipations. For this reason, extra care must be taken
when derating the operating conditions based on ambient
temperature.
Packaged in a 676-lead BGA, the AD8178 junction-to-ambient
thermal impedance (θ
the maximum allowed junction temperature of the die should
not exceed 150°C. Temporarily exceeding this limit may cause
a shift in parametric performance due to a change in stresses
exerted on the die by the package. Exceeding a junction
temperature of 175°C for an extended period can result in
device failure. The curve in
internal die power dissipations that meet these conditions over
the −40°C to +85°C ambient temperature range. When using
Tabl e 1 3 , do not include external load power in the maximum
power calculation, but do include load current dropped on the
die output transistors.
10
9
8
7
6
) is 15°C/W. For long-term reliability,
JA
Figure 4 shows the range of allowed
TJ = 150°C
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 13. Thermal Resistance
Package Type θJA Unit
PBGA 15 °C/W
ESD CAUTION
5
MAXIMUM DIE POWER (W)
4
3
15 25 35 45 55 65 75 85
AMBIENT TEM PERATURE (°C)
Figure 4. Maximum Die Power Dissipation vs. Ambient Temperature
6608-004
Rev. 0 | Page 7 of 40
AD8178
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
2625242322212019181716151413121110987654321
VNEG VNEG VNEG NC NC VNEG OPR4 ONB4 VPOS IPR8 INB8 VNEG IPR9 INB9 VPOS IPR10 INB10 VNEG IPR11 INB11 VPOS IPR12 INB12 VNEG VNEG VNEG
A
VNEG VNEG VNEG NC NC VNEG ONR4 OPB4 VPOS INR8 IPB8 VNEG INR9 IPB9 VPOS INR10 IPB10 VNEG INR11 IPB11 VPOS INR12 IPB12 VNEG VNEG VNEG
B
VNEG VNEG VNEG NC NC VNEG OPG4 ONG4 VPOS IPG8 ING8 VNEG IPG9 ING9 VPOS IPG10 ING10 VNEG IPG11 ING11 VPOS IPG12 ING12 VNEG VNEG VNEG
C
VNEG VNEG VNEG NC NC VPOS H4 V4 VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS IPG13 INR13 IPR13
D
VNEG VNEG VNEG VPOS VPOS VPOS VPOS VPOS DGND VDD
E
VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS
F
ONB3 OPB3 ONG3 V3 VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS
G
OPR3 ONR3 OPG3 H3 VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS IPG14 INR14 IPR14
H
VNEG VNEG VNEG VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS ING14 IPB14 INB14
J
NC NC NC NC VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS VNEG VNEG VNEG
K
NC NC NC NC VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS IPG15 INR15 IPR15
L
VPOS VPOS VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS ING15 IPB15 INB15
M
ONB2 OPB2 ONG2 V2 VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS VPOS VPOS
N
OPR2 ONR2 OPG2 H2 VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VBLK VPOS VPOS VPOS VPOS
P
VNEG VNEG VNEG VPOS VPOS VPOS VNEG VNEG VN EG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS IPG7 INR7 IPR7
R
NC NC NC NC VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS ING7 IPB7 INB7
T
NC NC NC NC VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS VNEG VNEG VNEG
U
VPOS VPOS VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG V NEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS IPG6 INR6 IPR6
V
ONB1 OPB1 ONG1 V1 VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS ING6 IPB6 INB6
W
OPR1 ONR1 OPG1 H1 VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS
Y
VNEG VNEG VNEG VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS
AA
VNEG VNEG VNEG VPOS VPOS VPOS VPOS VPOS DGND VDD RST UPDATE WE CMENC D4 D3 D2 D1 D0 VDD DGND VPOS VPOS IPG5 INR5 IPR5
AB
VNEG VNEG VNEG NC NC VPOS V0 H0 VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS ING5 IPB5 INB5
AC
VNEG VNEG VNEG NC NC VPOS ONG0 OPG0 VNEG ING0 IPG0 VPOS ING1 IPG1 VNEG ING2 IPG2 VPOS ING3 IPG3 VNEG ING4 IPG4 VNEG VNEG VNEG
AD
VNEG VNEG VNEG NC NC VPOS OPB0 ONR0 VNEG IPB0 INR0 VPOS IPB1 INR1 VNEG IPB2 INR2 VPOS IPB3 INR3 VNEG IPB4 INR4 VNEG VNEG VNEG
AE
VNEG VNEG VNEG NC NC VPOS ONB0 OPR0 VNEG INB0 IPR0 VPOS INB1 IPR1 VNEG INB2 IPR2 VPOS INB3 IPR3 VNEG INB4 IPR4 VNEG VNEG VNEG
AF
SEROUT
CS CLK SERIN
2625242322212019181716151413121110987654321
Figure 5. Pin Configuration, Package Bottom View
SER/PAR
A2 A1 A0 CLR VDD DGND VPOS VPOS ING13 IPB13 INB13
VOCM_
CMENCON
VOCM_
CMENCOFF
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
AC
AD
AE
AF
06608-055
Rev. 0 | Page 8 of 40
AD8178
1 2 3 4 5 6 7 8 9 101112131415161718192021222324 25 26
A
VNEG VNEG VNEG INB12 IPR12 VPOS INB11 IPR11 VNEG INB10 IPR10 VPOS INB9 IPR9 VNEG INB8 IPR8
B
VNEG VNEG VNEG IPB12 INR12 VPOS IPB11 INR11 VNEG IPB10 INR10 VPOS IPB9 INR9 VNEG IPB8 INR8 VPOS OPB4 ONR4 VNEG NC NC VNEG VNEG VNEG
C
VNEG VNEG VNEG ING12 IPG12 VPOS ING11 IPG11 VNEG ING10 IPG10 VPOS ING9 IPG9 VNEG ING8 IPG8 VPOS ONG4 OPG4 VNEG NC NC VNEG VNEG VNEG
D
IPR13 INR13 IPG13 VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS V4 H4 VPOS NC NC VNEG VNEG VNEG
CS
E
INB13 IPB13 ING13 VPOS VPOS DGND VDD CLR A0 A1 A2
F
VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS
G
VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS V3 ONG3 OPB3 ONB3
H
IPR14 INR14 IPG14 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS H3 OPG3
J
INB14 IPB14 ING14 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VNEG VNEG VNEG
K
VNEG VNEG VNEG VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS NC NC NC NC
L
IPR15 INR15 IPG15 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS NC NC NC NC
M
INB15 IPB15 ING15 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS VPOS VPOS
N
VPOS VPOS VPOS VPOS
P
VPOS VPOS VPOS VPOS VBLK VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS H2 OPG2 ONR2 OPR2
R
IPR7 INR7 IPG7 VPOS
T
INB7 IPB7 ING7 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS NC NC NC NC
U
VNEG VNEG VNEG VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS NC NC NC NC
V
IPR6 INR6 IPG6 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VPOS VPOS VPOS
W
INB6 IPB6 ING6 VPOS VPOS VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS V1 ONG1 OPB1 ONB1
Y
VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS H1 OPG1 ONR1 OPR1
AA
VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VNEG VNEG VNEG
AB
IPR5 INR5 IPG5 VPOS VPOS DGND VDD D0 D1 D2 D3 D4 CMENC VDD DGND VPOS VPOS VPOS VPOS VPOS VNEG VNEG VNEG
AC
INB5 IPB5 ING5 VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS VPOS H0 V0 VPOS NC NC VNEG VNEG VNEG
AD
VNEG V NEG V NEG IPG4 IN G4 V NEG IP G3 IN G3 V POS IP G2 IN G2 VNE G IPG1 IN G1 VP OS IPG0 IN G0 V NEG OP G0 ON G0 VP OS NC NC VN EG VNEG VNEG
AE
VNEG VNEG VNEG INR4 IPB4 VNEG INR3 IPB3 VPOS INR2 IPB2 VNEG INR1 IPB1 VPOS INR0 IPB0 VNEG ONR0 OPB0 VPOS NC NC VNEG VNEG VNEG
AF
VNEG VNEG VNEG IPR4 INB4 VNEG IPR3 INB3 VPOS IPR2 INB2 VNEG IPR1 INB1 VPOS IPR0 INB0 VNEG OPR0 ONB0 VPOS NC NC VNEG VNEG VNEG
VOCM_
VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS V2 ONG2 OPB2 ONB2
CMENCON
VOCM_
VPOS VPOS VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VNEG VPOS VPOS VPOS VNEG VNEG VNEG
CMENCOFF
SER/PAR
SERIN
CLK
UPDATE
SEROUT
RSTWE
1 2 3 4 5 6 7 8 9 101112131415161718192021222324 25 26
Figure 6. Pin Configuration, Package Top View
VPOS ONB4 OPR4 VNEG NC NC VNEG VNEG VNEG
VDD DGND VPOS VPOS VPOS VPOS VPOS VNEG VNEG VNEG
ONR3 OPR3
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
AC
AD
AE
AF
6608-056
Rev. 0 | Page 9 of 40
AD8178
Table 14. Ball Grid Description
Ball No. Mnemonic Description
A1 VNEG Negative Analog Power Supply.
A2 VNEG Negative Analog Power Supply.
A3 VNEG Negative Analog Power Supply.
A4 INB12 Input Number 12, Negative Phase.
A5 IPR12 Input Number 12, Positive Phase.
A6 VPOS Positive Analog Power Supply.
A7 INB11 Input Number 11, Negative Phase.
A8 IPR11 Input Number 11, Positive Phase.
A9 VNEG Negative Analog Power Supply.
A10 INB10 Input Number 10, Negative Phase.
A11 IPR10 Input Number 10, Positive Phase.
A12 VPOS Positive Analog Power Supply.
A13 INB9 Input Number 9, Negative Phase.
A14 IPR9 Input Number 9, Positive Phase.
A15 VNEG Negative Analog Power Supply.
A16 INB8 Input Number 8, Negative Phase.
A17 IPR8 Input Number 8, Positive Phase.
A18 VPOS Positive Analog Power Supply.
A19 ONB4 Output Number 4, Negative Phase.
A20 OPR4 Output Number 4, Positive Phase.
A21 VNEG Negative Analog Power Supply.
A22 NC No Connect.
A23 NC No Connect.
A24 VNEG Negative Analog Power Supply.
A25 VNEG Negative Analog Power Supply.
A26 VNEG Negative Analog Power Supply.
B1 VNEG Negative Analog Power Supply.
B2 VNEG Negative Analog Power Supply.
B3 VNEG Negative Analog Power Supply.
B4 IPB12 Input Number 12, Positive Phase.
B5 INR12 Input Number 12, Negative Phase.
B6 VPOS Positive Analog Power Supply.
B7 IPB11 Input Number 11, Positive Phase.
B8 INR11 Input Number 11, Negative Phase.
B9 VNEG Negative Analog Power Supply.
B10 IPB10 Input Number 10, Positive Phase.
B11 INR10 Input Number 10, Negative Phase.
B12 VPOS Positive Analog Power Supply.
B13 IPB9 Input Number 9, Positive Phase.
B14 INR9 Input Number 9, Negative Phase.
B15 VNEG Negative Analog Power Supply.
B16 IPB8 Input Number 8, Positive Phase.
B17 INR8 Input Number 8, Negative Phase.
B18 VPOS Positive Analog Power Supply.
B19 OPB4 Output Number 4, Positive Phase.
B20 ONR4 Output Number 4, Negative Phase.
B21 VNEG Negative Analog Power Supply.
B22 NC No Connect.
B23 NC No Connect.
B24 VNEG Negative Analog Power Supply.
B25 VNEG Negative Analog Power Supply.
Ball No. Mnemonic Description
B26 VNEG Negative Analog Power Supply.
C1 VNEG Negative Analog Power Supply.
C2 VNEG Negative Analog Power Supply.
C3 VNEG Negative Analog Power Supply.
C4 ING12 Input Number 12, Negative Phase.
C5 IPG12 Input Number 12, Positive Phase.
C6 VPOS Positive Analog Power Supply.
C7 ING11 Input Number 11, Negative Phase.
C8 IPG11 Input Number 11, Positive Phase.
C9 VNEG Negative Analog Power Supply.
C10 ING10 Input Number 10, Negative Phase.
C11 IPG10 Input Number 10, Positive Phase.
C12 VPOS Positive Analog Power Supply.
C13 ING9 Input Number 9, Negative Phase.
C14 IPG9 Input Number 9, Positive Phase.
C15 VNEG Negative Analog Power Supply.
C16 ING8 Input Number 8, Negative Phase.
C17 IPG8 Input Number 8, Positive Phase.
C18 VPOS Positive Analog Power Supply.
C19 ONG4 Output Number 4, Negative Phase.
C20 OPG4 Output Number 4, Positive Phase.
C21 VNEG Negative Analog Power Supply.
C22 NC No Connect.
C23 NC No Connect.
C24 VNEG Negative Analog Power Supply.
C25 VNEG Negative Analog Power Supply.
C26 VNEG Negative Analog Power Supply.
D1 IPR13 Input Number 13, Positive Phase.
D2 INR13 Input Number 13, Negative Phase.
D3 IPG13 Input Number 13, Positive Phase.
D4 VPOS Positive Analog Power Supply.
D5 VPOS Positive Analog Power Supply.
D6 VPOS Positive Analog Power Supply.
D7 VPOS Positive Analog Power Supply.
D8 VPOS Positive Analog Power Supply.
D9 VPOS Positive Analog Power Supply.
D10 VPOS Positive Analog Power Supply.
D11 VPOS Positive Analog Power Supply.
D12 VPOS Positive Analog Power Supply.
D13 VPOS Positive Analog Power Supply.
D14 VPOS Positive Analog Power Supply.
D15 VPOS Positive Analog Power Supply.
D16 VPOS Positive Analog Power Supply.
D17 VPOS Positive Analog Power Supply.
D18 VPOS Positive Analog Power Supply.
D19 V4 Output Number 4, V Sync.
D20 H4 Output Number 4, H Sync.
D21 VPOS Positive Analog Power Supply.
D22 NC No Connect.
D23 NC No Connect.
D24 VNEG Negative Analog Power Supply.
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AD8178
Ball No. Mnemonic Description
D25 VNEG Negative Analog Power Supply.
D26 VNEG Negative Analog Power Supply.
E1 INB13 Input Number 13, Negative Phase.
E2 IPB13 Input Number 13, Positive Phase.
E3 ING13 Input Number 13, Negative Phase.
E4 VPOS Positive Analog Power Supply.
E5 VPOS Positive Analog Power Supply.
E6 DGND Digital Power Supply.
E7 VDD Digital Power Supply.
E8 CLR Internal Register Clearing
E9 A0 Control Pin 0, Output Address Bit 0.
E10 A1 Control Pin 1, Output Address Bit 1.
E11 A2 Control Pin 2, Output Address Bit 2.
E12
E13 SERIN Control Pin: Serial Data In.
E14
E15
E16 SEROUT Control Pin: Serial Data Out.
E17 VDD Digital Power Supply.
E18 DGND Digital Power Supply.
E19 VPOS Positive Analog Power Supply.
E20 VPOS Positive Analog Power Supply.
E21 VPOS Positive Analog Power Supply.
E22 VPOS Positive Analog Power Supply.
E23 VPOS Positive Analog Power Supply.
E24 VNEG Negative Analog Power Supply.
E25 VNEG Negative Analog Power Supply.
E26 VNEG Negative Analog Power Supply.
F1 VPOS Positive Analog Power Supply.
F2 VPOS Positive Analog Power Supply.
F3 VPOS Positive Analog Power Supply.
F4 VPOS Positive Analog Power Supply.
F5 VPOS Positive Analog Power Supply.
F6 VPOS Positive Analog Power Supply.
F7 VPOS Positive Analog Power Supply.
F8 VPOS Positive Analog Power Supply.
F9 VPOS Positive Analog Power Supply.
F10 VPOS Positive Analog Power Supply.
F11 VPOS Positive Analog Power Supply.
F12 VPOS Positive Analog Power Supply.
F13 VPOS Positive Analog Power Supply.
F14 VPOS Positive Analog Power Supply.
F15 VPOS Positive Analog Power Supply.
F16 VPOS Positive Analog Power Supply.
F17 VPOS Positive Analog Power Supply.
F18 VPOS Positive Analog Power Supply.
F19 VPOS Positive Analog Power Supply.
F20 VPOS Positive Analog Power Supply.
F21 VPOS Positive Analog Power Supply.
F22 VPOS Positive Analog Power Supply.
F23 VPOS Positive Analog Power Supply.
F24 VPOS Positive Analog Power Supply.
SER/PAR
CLK
CS
Control Pin: Serial Parallel Select Mode.
Control Pin: Serial Data Clock.
Control Pin: Chip Select.
Ball No. Mnemonic Description
F25 VPOS Positive Analog Power Supply.
F26 VPOS Positive Analog Power Supply.
G1 VPOS Positive Analog Power Supply.
G2 VPOS Positive Analog Power Supply.
G3 VPOS Positive Analog Power Supply.
G4 VPOS Positive Analog Power Supply.
G5 VPOS Positive Analog Power Supply.
G6 VPOS Positive Analog Power Supply.
G7 VPOS Positive Analog Power Supply.
G8 VPOS Positive Analog Power Supply.
G9 VPOS Positive Analog Power Supply.
G10 VPOS Positive Analog Power Supply.
G11 VPOS Positive Analog Power Supply.
G12 VPOS Positive Analog Power Supply.
G13 VPOS Positive Analog Power Supply.
G14 VPOS Positive Analog Power Supply.
G15 VPOS Positive Analog Power Supply.
G16 VPOS Positive Analog Power Supply.
G17 VPOS Positive Analog Power Supply.
G18 VPOS Positive Analog Power Supply.
G19 VPOS Positive Analog Power Supply.
G20 VPOS Positive Analog Power Supply.
G21 VPOS Positive Analog Power Supply.
G22 VPOS Positive Analog Power Supply.
G23 V3 Output Number 3, V Sync.
G24 ONG3 Output Number 3, Negative Phase.
G25 OPB3 Output Number 3, Positive Phase.
G26 ONB3 Output Number 3, Negative Phase.
H1 IPR14 Input Number 14, Positive Phase.
H2 INR14 Input Number 14, Negative Phase.
H3 IPG14 Input Number 14, Positive Phase.
H4 VPOS Positive Analog Power Supply.
H5 VPOS Positive Analog Power Supply.
H6 VPOS Positive Analog Power Supply.
H7 VPOS Positive Analog Power Supply.
H8 VNEG Negative Analog Power Supply.
H9 VNEG Negative Analog Power Supply.
H10 VNEG Negative Analog Power Supply.
H11 VNEG Negative Analog Power Supply.
H12 VNEG Negative Analog Power Supply.
H13 VNEG Negative Analog Power Supply.
H14 VNEG Negative Analog Power Supply.
H15 VNEG Negative Analog Power Supply.
H16 VNEG Negative Analog Power Supply.
H17 VNEG Negative Analog Power Supply.
H18 VNEG Negative Analog Power Supply.
H19 VNEG Negative Analog Power Supply.
H20 VNEG Negative Analog Power Supply.
H21 VPOS Positive Analog Power Supply.
H22 VPOS Positive Analog Power Supply.
H23 H3 Output Number 3, H Sync.
H24 OPG3 Output Number 3, Positive Phase.
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AD8178
Ball No. Mnemonic Description
H25 ONR3 Output Number 3, Negative Phase.
H26 OPR3 Output Number 3, Positive Phase.
J1 INB14 Input Number 14, Negative Phase.
J2 IPB14 Input Number 14, Positive Phase.
J3 ING14 Input Number 14, Negative Phase.
J4 VPOS Positive Analog Power Supply.
J5 VPOS Positive Analog Power Supply.
J6 VPOS Positive Analog Power Supply.
J7 VPOS Positive Analog Power Supply.
J8 VNEG Negative Analog Power Supply.
J9 VNEG Negative Analog Power Supply.
J10 VNEG Negative Analog Power Supply.
J11 VNEG Negative Analog Power Supply.
J12 VNEG Negative Analog Power Supply.
J13 VNEG Negative Analog Power Supply.
J14 VNEG Negative Analog Power Supply.
J15 VNEG Negative Analog Power Supply.
J16 VNEG Negative Analog Power Supply.
J17 VNEG Negative Analog Power Supply.
J18 VNEG Negative Analog Power Supply.
J19 VNEG Negative Analog Power Supply.
J20 VNEG Negative Analog Power Supply.
J21 VPOS Positive Analog Power Supply.
J22 VPOS Positive Analog Power Supply.
J23 VPOS Positive Analog Power Supply.
J24 VNEG Negative Analog Power Supply.
J25 VNEG Negative Analog Power Supply.
J26 VNEG Negative Analog Power Supply.
K1 VNEG Negative Analog Power Supply.
K2 VNEG Negative Analog Power Supply.
K3 VNEG Negative Analog Power Supply.
K4 VPOS Positive Analog Power Supply.
K5 VPOS Positive Analog Power Supply.
K6 VPOS Positive Analog Power Supply.
K7 VPOS Positive Analog Power Supply.
K8 VNEG Negative Analog Power Supply.
K9 VNEG Negative Analog Power Supply.
K10 VNEG Negative Analog Power Supply.
K11 VNEG Negative Analog Power Supply.
K12 VNEG Negative Analog Power Supply.
K13 VNEG Negative Analog Power Supply.
K14 VNEG Negative Analog Power Supply.
K15 VNEG Negative Analog Power Supply.
K16 VNEG Negative Analog Power Supply.
K17 VNEG Negative Analog Power Supply.
K18 VNEG Negative Analog Power Supply.
K19 VNEG Negative Analog Power Supply.
K20 VNEG Negative Analog Power Supply.
K21 VPOS Positive Analog Power Supply.
K22 VPOS Positive Analog Power Supply.
K23 NC No Connect.
K24 NC No Connect.
Ball No. Mnemonic Description
K25 NC No Connect.
K26 NC No Connect.
L1 IPR15 Input Number 15, Positive Phase.
L2 INR15 Input Number 15, Negative Phase.
L3 IPG15 Input Number 15, Positive Phase.
L4 VPOS Positive Analog Power Supply.
L5 VPOS Positive Analog Power Supply.
L6 VPOS Positive Analog Power Supply.
L7 VPOS Positive Analog Power Supply.
L8 VNEG Negative Analog Power Supply.
L9 VNEG Negative Analog Power Supply.
L10 VNEG Negative Analog Power Supply.
L11 VNEG Negative Analog Power Supply.
L12 VNEG Negative Analog Power Supply.
L13 VNEG Negative Analog Power Supply.
L14 VNEG Negative Analog Power Supply.
L15 VNEG Negative Analog Power Supply.
L16 VNEG Negative Analog Power Supply.
L17 VNEG Negative Analog Power Supply.
L18 VNEG Negative Analog Power Supply.
L19 VNEG Negative Analog Power Supply.
L20 VNEG Negative Analog Power Supply.
L21 VPOS Positive Analog Power Supply.
L22 VPOS Positive Analog Power Supply.
L23 NC No Connect.
L24 NC No Connect.
L25 NC No Connect.
L26 NC No Connect.
M1 INB15 Input Number 15, Negative Phase.
M2 IPB15 Input Number 15, Positive Phase.
M3 ING15 Input Number 15, Negative Phase.
M4 VPOS Positive Analog Power Supply.
M5 VPOS Positive Analog Power Supply.
M6 VPOS Positive Analog Power Supply.
M7 VPOS Positive Analog Power Supply.
M8 VNEG Negative Analog Power Supply.
M9 VNEG Negative Analog Power Supply.
M10 VNEG Negative Analog Power Supply.
M11 VNEG Negative Analog Power Supply.
M12 VNEG Negative Analog Power Supply.
M13 VNEG Negative Analog Power Supply.
M14 VNEG Negative Analog Power Supply.
M15 VNEG Negative Analog Power Supply.
M16 VNEG Negative Analog Power Supply.
M17 VNEG Negative Analog Power Supply.
M18 VNEG Negative Analog Power Supply.
M19 VNEG Negative Analog Power Supply.
M20 VNEG Negative Analog Power Supply.
M21 VPOS Positive Analog Power Supply.
M22 VPOS Positive Analog Power Supply.
M23 VPOS Positive Analog Power Supply.
M24 VPOS Positive Analog Power Supply.
Rev. 0 | Page 12 of 40
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