ADG904BCP-R [ROCHESTER]
4-CHANNEL, SGL ENDED MULTIPLEXER, QCC20, 4 X 4 MM, MO-220VGGD-1, LFCSP-20;
| 型号： | ADG904BCP-R |
| 厂家： | 
Rochester Electronics |
| 描述： | 4-CHANNEL, SGL ENDED MULTIPLEXER, QCC20, 4 X 4 MM, MO-220VGGD-1, LFCSP-20 |
| 文件： | 总17页 (文件大小：1184K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Wideband 2.5 GHz, 37 dB Isolation at 1 GHz,
CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
ADG904/ADG904-R
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Wideband switch: –3 dB @ 2.5 GHz
ADG904: absorptive 4:1 mux/SP4T
ADG904-R: reflective 4:1 mux/SP4T
High off isolation (37 dB @ 1 GHz)
Low insertion loss (1.1 dB dc to 1 GHz)
Single 1.65 V to 2.75 V power supply
CMOS/LVTTL control logic
ADG904-R
ADG904
RF1
RF1
50Ω
50Ω
50Ω
50Ω
RF2
RF3
RF4
RF2
RF3
RF4
RFC
RFC
20-lead TSSOP and 4 mm × 4 mm LFCSP packages
Low power consumption (1 μA maximum)
APPLICATIONS
Wireless communications
General-purpose RF switching
Dual-band applications
High speed filter selection
Digital transceiver front end switch
IF switching
1 OF 4 DECODER
A0 A1 EN
1 OF 4 DECODER
A0 A1 EN
Tuner modules
Antenna diversity switching
Figure 1.
Figure 2.
GENERAL DESCRIPTION
The parts have on-board CMOS control logic, which eliminates
the need for external control circuitry. The control inputs
are both CMOS and LVTTL compatible. The low power
consumption of these devices makes them ideally suited
for wireless applications and general-purpose high
frequency switching.
The ADG904 and ADG904-R are wideband analog 4:1
multiplexers that use a CMOS process to provide high isolation
and low insertion loss to 1 GHz. The ADG904 is an
absorptive/matched mux with 50 Ω terminated shunt legs; the
ADG904-R is a reflective mux. These devices are designed such
that the isolation is high over the dc to 1 GHz frequency range.
PRODUCT HIGHLIGHTS
The ADG904 and ADG904-R switch one of four inputs to a
common output, RFC, as determined by the 3-bit binary
1. −37 dB off isolation @ 1 GHz
2. 1.1 dB insertion loss @ 1 GHz
address lines A0, A1, and
. A Logic 1 on the
pin disables
EN
EN
the device.
3. 20-lead TSSOP/LFCSP packages
–10
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–1.0
–1.1
–1.2
–1.3
–1.4
–1.5
–1.6
–1.7
–1.8
–1.9
–2.0
–2.1
–2.2
–2.3
–2.4
–2.5
–2.6
–2.7
V
= 2.5V
DD
–20
–30
–40
–50
–60
–70
–80
S21
S12
V
= 2.5V
–2.8
–2.9
–3.0
DD
= 25°C
T
A
10k
100k
1M
10M
100M
1G
10G
10k
100k
1M
10M
100M
1G
10G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 3. Off Isolation vs. Frequency
Figure 4. Insertion Loss vs. Frequency
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other 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 ©2004–2007 Analog Devices, Inc. All rights reserved.
ADG904/ADG904-R
TABLE OF CONTENTS
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Pin Configurations and Function Descriptions ........................... 5
Terminology ...................................................................................... 6
Typical Performance Characteristics ............................................. 7
Test Circuits ....................................................................................... 9
Applications..................................................................................... 11
Absorptive vs. Reflective ........................................................... 11
Antenna Diversity Switch.......................................................... 11
Filter Selection ............................................................................ 11
Tx/Rx Switching ......................................................................... 11
Evaluation Board ............................................................................ 12
Outline Dimensions....................................................................... 13
Ordering Guide .......................................................................... 14
REVISION HISTORY
2/07—Rev. A to Rev. B
Updated Outline Dimensions....................................................... 13
Changes to Ordering Guide .......................................................... 14
8/05—Rev. 0 to Rev. A
Added LFCSP Package.......................................................Universal
Changes to Specifications................................................................ 3
Changes to Absolute Maximum Ratings....................................... 4
Inserted New Figure 6...................................................................... 5
Changes to Table 4............................................................................ 5
Changes to Outline Dimensions................................................... 13
Changes to Ordering Guide .......................................................... 14
4/04—Revision 0: Initial Version
Rev. B | Page 2 of 16
ADG904/ADG904-R
SPECIFICATIONS
VDD = 1.65 V to 2.75 V, GND = 0 V, Input Power = 0 dBm, all specifications TMIN to TMAX, unless otherwise noted.1
Table 1.
B Version
Parameter
Symbol
Conditions
Min
Typ2 Max
Unit
AC ELECTRICAL CHARACTERISTICS
Operating Frequency3
3 dB Frequency4
DC
2
2.5
7
GHz
GHz
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input Power4
0 V dc bias
0.5 V dc bias
DC to 100 MHz; VDD = 2.5 V 10%
500 MHz; VDD = 2.5 V 10%
1000 MHz; VDD = 2.5 V 10%
100 MHz
500 MHz
1000 MHz
100 MHz
500 MHz
1000 MHz
DC to 100 MHz
500 MHz
1000 MHz
DC to 100 MHz
500 MHz
16
Insertion Loss
S21, S12
S21, S12
S21, S12
S11, S22
S11, S22
tON (
0.4
0.6
1.1
60
45
37
58
32
35
27
26
30
22
23
22
8.5
0.8
0.9
1.5
Isolation—RFC to RF1–RF4
Crosstalk
51
35
30
50
35
30
21
18
15
18
16
18
Return Loss (On Channel)4
Return Loss (Off Channel)4
dB
dB
ns
1000 MHz
50% EN to 90% RF
On Switching Time4
Off Switching Time4
10
16
)
EN
tOFF (
50% EN to 10% RF
13
ns
)
EN
Transition Time
tTRANS
tRISE
tFALL
P–1 dB
IP3
50% Ax to 10% RF
10% to 90% RF
90% to 10% RF
1000 MHz
900 MHz/901 MHz, 4 dBm
12
3
7.5
16
31
3
15
5
9
ns
ns
ns
dBm
dBm
mV p-p
Rise Time4
Fall Time4
1 dB Compression4
Third-Order Intermodulation Intercept
Video Feedthrough5
DC ELECTRICAL CHARACTERISTICS
Input High Voltage
26.5
VINH
VINH
VINL
VINL
II
VDD = 2.25 V to 2.75 V
VDD = 1.65 V to 1.95 V
VDD = 2.25 V to 2.75 V
VDD = 1.65 V to 1.95 V
0 ≤ VIN ≤ 2.75 V
1.7
0.65 VCC
V
V
V
V
Input Low Voltage
0.7
0.35 VCC
1
Input Leakage Current
CAPACITANCE4
0.1
μA
RF Port On Capacitance
Digital Input Capacitance
POWER REQUIREMENTS
VDD
CRF ON
C
f = 1 MHz
f = 1 MHz
3
2
pF
pF
1.65
2.75
1
V
μA
Quiescent Power Supply Current
IDD
Digital inputs = 0 V or VDD
0.1
1 Temperature range B version: −40°C to +85°C.
2 Typical values are at VDD = 2.5 V and 25°C, unless otherwise stated.
3 Operating frequency is the point at which insertion loss degrades by 1.5 dB.
4 Guaranteed by design, not subject to production test.
5 Video feedthrough is the dc transience at the output of any port of the switch when the control voltage is switched from high to low or low to high in a 50 Ω test
setup, measured with 1 ns rise time pulses and 500 MHz bandwidth.
Rev. B | Page 3 of 16
ADG904/ADG904-R
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 2.
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. Only one absolute maximum rating may be
applied at any one time.
Parameter
Rating
VDD to GND
Inputs to GND
Continuous Current
Input Power
–0.5 V to +4 V
–0.5 V to VDD + 0.3 V1
30 mA
18 dBm
Operating Temperature Range
Industrial (B Version)
Storage Temperature Range
Junction Temperature
TSSOP Package
–40°C to +85°C
–65°C to +150°C
150°C
Table 3. Truth Table
θJA Thermal Impedance
LFCSP Package
θJA Thermal Impedance
(4-Layer Board)
143°C/W
30.4°C/W
A1
A0
EN
ON Switch1
X
0
0
1
1
X
0
1
0
1
1
0
0
0
0
None
RF1
RF2
RF3
RF4
Lead Temperature, Soldering (10 sec)
IR Reflow, Peak Temperature (<20 sec)
ESD
300°C
235°C
1 kV
1 RFx off port inputs to ground = –0.5 V to VDD – 0.5 V.
1 Off switches have: 50 Ω termination to GND (ADG904); shunt to GND
(ADG904-R).
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. B | Page 4 of 16
ADG904/ADG904-R
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
EN
1
20 A0
V
2
19 A1
DD
GND
RF1
3
4
5
6
7
8
9
18 GND
ADG904
ADG904-R 17 RF2
15 GND
14 RF2
13 GND
12 GND
11 RF4
GND
RF1
1
2
3
4
5
GND
GND
RF3
16 GND
15 GND
14 RF4
13 GND
12 GND
11 GND
TOP VIEW
(Not to Scale)
ADG904
ADG904-R
GND
GND
RF3
TOP VIEW
(Not to Scale)
GND
GND
RFC 10
Figure 5. 20-Lead TSSOP (RU-20)
Figure 6. 20-Lead 4 mm × 4mm LFCSP (CP-20-1)
Table 4. Pin Function Descriptions
Pin No.
20-Lead LFCSP
20-Lead TSSOP
Mnemonic Function
1
18
EN
Active Low Digital Input. When high, the device is disabled and all switches
are off. When low, Ax logic inputs determine On switches.
2
19
VDD
GND
Power Supply Input. These parts can be operated from 1.65 V to 2.75 V.
VDD should be decoupled to GND.
Ground Reference Point for All Circuitry on the Part.
3, 5, 6, 8, 9, 11, 12, 1, 3, 4, 6, 7, 9, 10,
13, 15, 16, 18
12, 13, 15, 20
4
7
2
5
8
11
14
16
17
RF1
RF3
RFC
RF4
RF2
A1
RF1 Port.
RF3 Port.
Common RF Port for Switch.
RF4 Port.
RF2 Port.
10
14
17
19
20
Logic Control Input.
Logic Control Input.
A0
Rev. B | Page 5 of 16
ADG904/ADG904-R
TERMINOLOGY
Table 5.
Parameter
Description
VDD
IDD
Most Positive Power Supply Potential.
Positive Supply Current.
GND
Ax
Ground (0 V) Reference.
Logic Control Input.
VINL
VINH
IINL (IINH
CIN
Maximum Input Voltage for Logic 0.
Minimum Input Voltage for Logic 1.
Input Current of the Digital Input.
Digital Input Capacitance.
)
tON (
Delay between Applying the EN Control Input and the Output Switching On.
)
EN
tOFF (
Delay between Applying the EN Control Input and the Output Switching Off.
)
EN
tRISE
Rise Time. Time for the RF signal to rise from 10% of the on level to 90% of the on level.
tFALL
Fall Time. Time for the RF signal to fall from 90% of the on level to 10% of the on level.
tTRANS
Transition Time. Delay between applying the digital control input and the output switching on.
The Attenuation between Input and Output Ports of the Switch when the Switch Control Voltage is in the Off Condition.
The Attenuation between Input and Output Ports of the Switch when the Switch Control Voltage is in the On Condition.
Measure of Unwanted Signal Coupled through from One Channel to Another as a Result of Parasitic Capacitance.
1 dB Compression Point. The RF input power level at which the switch insertion loss increases by 1 dB over its low level
value. P–1 dB is a measure of how much power the on switch can handle before the insertion loss increases by 1 dB.
Off Isolation
Insertion Loss
Crosstalk
P–1 dB
IP3
Third-Order Intermodulation Intercept. This is a measure of the power in false tones that occur when closely spaced
tones are passed through a switch, and the nonlinearity of the switch causes these false tones to be generated.
Return Loss
The Amount of Reflected Power Relative to the Incident Power at a Port. Large return loss indicates good matching. By
measuring return loss, the voltage standing wave ratio (VSWR) can be calculated from conversion charts. VSWR indicates
the degree of matching present at a switch RF port.
Video
Feedthrough
Spurious Signals Present at the RF Ports of the Switch when the Control Voltage Is Switched from High to Low or Low to
High without an RF Signal Present.
Rev. B | Page 6 of 16
ADG904/ADG904-R
TYPICAL PERFORMANCE CHARACTERISTICS
–0.3
–0.4
–0.5
–0.6
–0.7
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–1.0
–1.1
–1.2
–1.3
–1.4
–1.5
–1.6
–1.7
–1.8
–1.9
–2.0
–2.1
–2.2
–2.3
–2.4
–2.5
–2.6
–2.7
–2.8
–2.9
–3.0
T
T
= –40°C
A
–0.8
–0.9
–1.0
–1.1
–1.2
–1.3
–1.4
–1.5
–1.6
–1.7
–1.8
–1.9
–2.0
–2.1
–2.2
–2.3
–2.4
–2.5
–2.6
–2.7
–2.8
–2.9
–3.0
V
V
V
= 2.25V
= 2.75V
= 2.50V
DD
DD
DD
= +25°C
= +85°C
A
T
A
T
= 25°C
V
= 2.5V
A
DD
10k
100k
1M
10M
100M
1G
10G
10G
10G
10k
100k
1M
10M
100M
1G
10G
10G
10G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 7. Insertion Loss vs. Frequency over Supplies
(RF1–RF4, S12, and S21)
Figure 10. Insertion Loss vs. Frequency over Temperature
((RF1–RF4, S12, and S21)
–0.3
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
V
= 1.65V TO 2.75V
DD
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–1.0
–1.1
V
V
V
= 2.50V
= 2.75V
= 2.25V
DD
DD
DD
S21
S12
T
= 25°C
A
10k
100k
1M
10M
100M
1G
10k
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 8. Insertion Loss vs. Frequency over Supplies
(RF1–RF4, S12, and S21). Zoomed Figure 7 Plot
Figure 11. Isolation vs. Frequency over Supplies
(RF1–RF4, S12, and S21)
–0.3
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
V
DD
= 2.5V
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–1.0
–1.1
–1.2
–1.3
–1.4
–1.5
–1.6
–1.7
–1.8
–1.9
–2.0
–2.1
–2.2
–2.3
–2.4
–2.5
–2.6
–2.7
–2.8
–2.9
–3.0
V
= 1.65V
= 1.80V
= 1.95V
DD
DD
DD
V
V
T
=+85°C
=+25°C
A
T
A
T
= –40°C
A
T
= 25°C
A
10k
100k
1M
10M
100M
1G
10k
100k
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 9. Insertion Loss vs. Frequency over Supplies
(RF1–RF4, S12, and S21)
Figure 12. Isolation vs. Frequency over Temperature
(RF1–RF4, S12, and S21)
Rev. B | Page 7 of 16
ADG904/ADG904-R
0
[
]
T
T
TRIG'D
Δ : 2.40mV
–5
A0
–10
–15
–20
1
3
OFF SWITCH
–25
–30
–35
RFC
ON SWITCH
V
= 2.5V
DD
= 25°C
T
A
10k
100k
1M
10M
100M
1G
10G
CH1 1.00V
M 20.0ns
FREQUENCY (Hz)
CH3 1.00mV
Figure 16. Video Feedthrough
Figure 13. Return Loss vs. Frequency (RF1–RF4, S11)
–10
35
30
25
20
15
10
5
–20
–30
–40
–50
–60
–70
–80
V
= 2.5V
V
T
= 2.5V
= 25°C
DD
= 25°C
DD
T
A
A
0
100
10k
100k
1M
10M
100M
1G
10G
200
300
400
500
600
700
800
900
FREQUENCY (Hz)
FREQUENCY (MHz)
Figure 14. Crosstalk vs. Frequency
Figure 17. IP3 vs. Frequency
18
16
14
12
10
8
TEK RUN: 5.00GS/s ET ENVELOPE
[
]
T
A1
1
3
6
RF1/3
4
2
V
= 2.5V
DD
T
= 25°C
A
0
0
250
500
750
1000
1250
1500
FREQUENCY (MHz)
CH1
1.00V
Ch2 100mV
M 5.00ns
CH3 100mV
Figure 18. P-1 dB vs. Frequency
Figure 15. Switch Timing
Rev. B | Page 8 of 16
ADG904/ADG904-R
TEST CIRCUITS
V
DD
10μF
V
OUT
V
DD
DD
R
50Ω
L
10μF
ADG904R
V
DD
RFx
RF2
NETWORK
ANALYZER
V
50Ω
RFC
V
OUT
RFx
RFC
50%
50%
50Ω
R
V
L
Ax
V
V
S
S
50Ω
Ax
90%
10%
1 0F 4
DECODER
V
OUT
GND
GND
V
V
S
A0
A1
EN
OUT
INSERTION LOSS = 20log
tON
Figure 19. Switch Timing: tON, tOFF
tOFF
Figure 22. Insertion Loss
V
DD
10μF
V
V
DD
NETWORK
ANALYZER
10μF
DD ADG904R
V
RF1
RF2
50Ω
V
S
DD
RFC
50Ω
V
OUT
RFx
RFC
50%
50%
V
OUT
V
Ax
R
L
R
50Ω
L
V
50Ω
S
90% 90%
Ax
10%
10%
V
OUT
1 0F 4
DECODER
GND
GND
V
V
A0
A1
EN
OUT
CROSSTALK = 20log
tRISE
tFALL
S
Figure 20. Switch Timing: tRISE, tFALL
Figure 23. Crosstalk
V
V
DD
V
DD
DD
10μF
10μF
50Ω
V
S
DD ADG904R
ADG904R
V
V
OUT
NC
NC
RF1
RF2
R
50Ω
L
RFx
RF2
RFC
RFC
OSCILLOSCOPE
NETWORK
ANALYZER
50Ω
1 0F 4
DECODER
1 0F 4
DECODER
GND
GND
V
OUT
A0
A1
EN
OFF ISOLATION = 20log
A0
A1
EN
V
S
Figure 21. Off Isolation
Figure 24. Video Feedthrough
Rev. B | Page 9 of 16
ADG904/ADG904-R
V
V
DD
DD
10μF
10μF
V
DD ADG904R
DD ADG904R
V
RF1
RF2
RF1
RF2
50Ω
RF
SOURCE
50Ω
RFC
SPECTRUM
ANALYZER
RFC
SPECTRUM
ANALYZER
RF
COMBINER
SOURCE
V
S
RF
SOURCE
1 0F 4
DECODER
1 0F 4
DECODER
GND
GND
A0
A1
EN
A0
A1
EN
Figure 25. IP3
Figure 26. P-1 dB
Rev. B | Page 10 of 16
ADG904/ADG904-R
APPLICATIONS
The ADG904 and ADG904-R are ideal solutions for low power,
high frequency applications. The low insertion loss, high
isolation between ports, low distortion, and low current
consumption of these parts make them excellent solutions for
many high frequency switching applications. They may be used
in applications such as switchable filters, transmitters and
receivers for radar systems, and communications systems from
base stations to cell phones.
VGA
RF1
RF2
RF3
RF4
CABLE
TUNER
ADG904
ANTENNA
Figure 27. Tuner Modules
The ADG9xx wideband switches are designed to meet the
demands of devices that transmit at ISM band frequencies of
1 GHz and higher. The low insertion loss, high isolation
between ports, single pin control interface, no requirement for
dc blocking capacitors, and TTL interface compatibility of these
parts make them cost-effective and an easy-to-integrate
switching solution for many high frequency switching
applications and low power applications where the parts can
handle up to 16 dBm of power.
FILTER SELECTION
The ADG904 can be used to switch high frequency signals
between different filters and to multiplex the signal to the
output. These SP4T switches are also ideal for high speed
signal routing.
RF1
RF2
RF3
RF4
RF1
RF2
RF3
RF4
ABSORPTIVE VS. REFLECTIVE
RF
RF
OUT
IN
ADG904
ADG904
RFC
RFC
The ADG904 is an absorptive (matched) switch with 50 Ω
terminated shunt legs; the ADG904-R is a reflective switch with
0 Ω terminated shunts to ground. The ADG904 absorptive
switch has a good VSWR on each port, regardless of the switch
mode. An absorptive switch should be used when there is a
need for a good VSWR that is looking into the port but not
passing the through signal to the common port. The ADG904 is
therefore ideal for applications that require minimum
reflections back to the RF source. It also ensures that the
maximum power is transferred to the load.
Figure 28. Filter Selection
Tx/Rx SWITCHING
The low insertion loss and high isolation between ports ensure
that the ADG904 and ADG904-R are suitable transmit/receive
switches for all ISM band and wireless LAN, providing the
required isolation between the transmit signal and the
receive signal.
The ADG904-R reflective switch is suitable for applications
where high off port VSWR does not matter, and the switch has
other performance features. It may be used in many applica-
tions, including high speed filter selection. In most cases, an
absorptive switch may be used instead of a reflective switch, but
not vice versa.
Rx
Rx
Rx
Rx
ANTENNA
ADG904
Tx
ANTENNA DIVERSITY SWITCH
The ADG904 is ideal for use as an antenna diversity switch,
switching different antennas into the tuner. The low insertion
loss ensures minimum signal loss and high isolation between
channels, making these SP4T switches suitable for switching
applications in tuner modules and set-top boxes.
Figure 29. Tx/Rx Switching
Rev. B | Page 11 of 16
ADG904/ADG904-R
EVALUATION BOARD
The ADG904/ADG904-R evaluation board allows designers
to evaluate the high performance, wideband switches with
minimal effort.
Only a power supply and a network analyzer, along with the
evaluation board, are required to demonstrate that these devices
meet user requirements. An application note, available with the
evaluation board, provides complete operating information.
The RFC port (see Figure 30) is connected through a 50 Ω
transmission line to the bottom left SMA connector, J4. RF1,
RF2, RF3, and RF4 are connected through 50 Ω transmission
lines to SMA connectors J5, J6, J7, and J8, respectively. A through
transmission line connects J9 and J10; this transmission line
is used to estimate the loss of the PCB over the environmental
conditions being evaluated.
Figure 30. ADG904/ADG904-R Evaluation Board Top View
The board is constructed of four-layer, FR4 material with a
dielectric constant of 4.3 and an overall thickness of 0.062 inches.
Two ground layers with grounded planes provide ground for
the RF transmission lines. The transmission lines were designed
using a coplanar waveguide with a ground plane model using
a trace width of 0.024 inches, clearance to ground plane of
0.008 inches, dielectric thickness of 0.02 inches, and a metal
thickness of 0.0021 inches.
Rev. B | Page 12 of 16
ADG904/ADG904-R
OUTLINE DIMENSIONS
6.60
6.50
6.40
20
11
10
4.50
4.40
4.30
6.40 BSC
1
PIN 1
0.65
BSC
1.20 MAX
0.15
0.05
0.20
0.09
0.75
0.60
0.45
8°
0°
0.30
0.19
COPLANARITY
0.10
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MO-153-AC
Figure 31. 20-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-20)
Dimensions shown in millimeters
0.60
MAX
4.00
BSC SQ
PIN 1
INDICATOR
0.60
MAX
20
1
16
15
PIN 1
INDICATOR
2.25
2.10 SQ
1.95
TOP
VIEW
3.75
BCS SQ
11
10
5
6
0.75
0.55
0.35
0.25 MIN
0.80 MAX
0.65 TYP
0.30
0.23
0.18
12° MAX
1.00
0.85
0.80
0.05 MAX
0.02 NOM
0.20
REF
SEATING
PLANE
COPLANARITY
0.08
0.50
BSC
COMPLIANT TO JEDEC STANDARDS MO-220-VGGD-1
Figure 32. 20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
4 mm x 4 mm Body, Very Thin Quad
(CP-20-1)
Dimensions shown in millimeters
Rev. B | Page 13 of 16
ADG904/ADG904-R
ORDERING GUIDE
Model
ADG904BRU
ADG904BRU-500RL7
ADG904BRU-REEL
ADG904BRU-REEL7
ADG904BRUZ1
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package Description
Package Option
RU-20
RU-20
RU-20
RU-20
RU-20
RU-20
RU-20
RU-20
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package [TSSOP]
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Thin Shrink Small Outline Package (TSSOP)
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
Evaluation Board
ADG904BRUZ-REEL71
ADG904BRU-R
ADG904BRU-R-500RL7
ADG904BRU-R-REEL
ADG904BRU-R-REEL7
ADG904BRUZ-R1
ADG904BCP
ADG904BCP-500RL7
ADG904BCP-REEL
ADG904BCP-REEL7
ADG904BCPZ1
ADG904BCPZ-REEL1
ADG904BCPZ-REEL71
ADG904BCP-R
ADG904BCP-R-500RL7
ADG904BCP-R-REEL
ADG904BCP-R-REEL7
EVAL-ADG904EBZ1
EVAL-ADG904REB
RU-20
RU-20
RU-20
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
CP-20-1
Evaluation Board
1 Z = RoHS compliant part.
Rev. B | Page 14 of 16
ADG904/ADG904-R
NOTES
Rev. B | Page 15 of 16
ADG904/ADG904-R
NOTES
©2004–2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D04504–0–2/07(B)
Rev. B | Page 16 of 16
相关型号：
ADG904BCPZ-R-REEL
4-CHANNEL, SGL ENDED MULTIPLEXER, QCC20, 4 X 4 MM, ROHS COMPLIANT, MO-220VGGD-1, LFCSP-20
ROCHESTER
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