Datasheet RF2617, RF2617PCBA Datasheet (RF Micro Devices)

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10-17
10
IF AMPLIERS
Product Description
Ordering Information
Typical Applications
Features
RF Micro Devices, Inc. 7625 Thorndike Road Greensboro,NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching® Applied
Si BJT GaAs MESFETGaAs HBT Si Bi-CMOS
SiGe HBT
Si CMOS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CDMA+
CDMA-
GND
FM+
FM-
GND
IN SELECT
NC
GC
VCC
VCC
VCC
GND
GND
OUT+
OUT-
GAIN
CONTROL
IN
SEL.
RF2617
3V CDMA/FM RECEIVE AGC AMPLIFIER
• 3V CDMA/FM Cellular Systems
• Supports Dual-Mode AMPS/CDMA
• Supports Dual-Mode TACS/CDMA
• General Purpose Linear IF Amplifier
• Commercial and Consumer Systems
• Portable Battery Powered Equipment
The RF2617 is a complete AGC amplifier designed for the receive section of 3V dual-mode CDMA/FM cellular applications.It is designed to amplify IF signals while pro­viding more than 90dB of gain control range. Noise Fig­ure, IP
3
, and other specifications are designed to be
compatible with the IS-95 Interim Standard for CDMA cel­lular communications. This circuit is designed as part of the RFMD CDMA Chip Set, consisting of a Transmit IF AGC Amp, a Transmit Upconverter, a Receive LNA/Mixer, and this Receive IF AGC Amp. The IC is manufactured on an advanced high frequency Silicon Bipolar process, and is packaged in a standard miniature 16-lead plastic SSOP package.
• Supports Dual Mode Operation
• -48dB to +48dB Gain Control Range
• Single 3V Power Supply
• Digitally Selectable Inputs
• -2dBm Input IP
3
• 12MHz to 285MHz Operation
RF2617 3V CDMA/FM Receive AGC Amplifier RF2617 PCBA Fully Assembled Evaluation Board
10
Rev B4 010717
0.157
0.150
0.025
0.012
0.008
0.196
0.189
0.2440
0.2284
0.0688
0.0532
0.050
0.016
0.0098
0.0075
8° MAX
0°MIN
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding mold flash.
3. Lead coplanarity - 0.005 with respect to datum "A".
-A-
0.0098
0.0040
Package Style: SSOP-16
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RF2617
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IF AMPLIERS
Absolute M aximum Ratings
Parameter Value Unit
Supply Voltage -0.5 to +7.0 V
DC
Control Voltage -0.5 to +5.0 V
DC
Input RF Power +10 dBm Operating Ambient Temperature -40 to +85 °C Storage Temperature -40 to +150 °C
Parameter
Specification
Unit Condition
Min. Typ. Max.
Overall
T=25°C, 85MHz, VCC=3.0V,ZS=500Ω, Z
L
=500Ω,500Ω External CDMA Input Ter-
minating Resistor, 500External Output Terminating Resistor (Effective Z
S
=333Ω,
Effective Z
L
=250Ω) (See application sche-
matic). Frequency Range 12 to 285 MHz CDMA Maximum Gain +45 +48 dB V
GC
=2.4V
CDMA Minimum Gain -48 -45 dB V
GC
=0.3V
FM Maxi mum Gain +45 +49 dB V
GC
=2.4V
FM Minimum Gain -48 -45 dB V
GC
=0.3V
Gain Slope 57 dB/V Measured in 0.5V increments Gain Control Voltage Range 0 to 3 V
DC
Source impedance of 4.7k Gain Control Input Impedance 30 k
Noise Figure 5 8 dB At maximum gain and 85MHz Input IP
3
-44 -40 dBm At +40dB gain, referenced to 500
-4 -2 dBm At minimum gain, referenced to 500
Stability (Max VSWR) 10:1 Spurious< - 70dBm
IF Input
Input Impedance 1 k CDMA, differential Input Impedance 850 FM, single-ended CDMA to FM Isolation 30 dB
Power Supply
Voltage 2.7 to 3.3 V Current Consumption 13 15 mA Minimum gain, V
CC
=3.0V
Current Consumption 14 16 mA Maximum gain, V
CC
=3.0V
Caution! ESD sensi t ive device.
RF Micro Devices believes the furnishedinformation is correct and accurate at the time of this printing. However, RF Micro Devices reservesthe right to make changes to its products without notice.RF Micro Devices does not assume responsibility for the use of the described product(s).
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RF2617
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IF AMPLIERS
Pin Function Description Interface Schematic
1 CDMA+
CDMA balanced input pin. This pin is internally DC-biased and should be DC-blocked if connected to a device with a DC level other than V
CC
present. A DC to connection to VCCis acceptable. For single-ended input operation, one pin is used as an input and the other CDMA input
is AC-coupled to ground. The balanced input impedance is 1k,while the single-ended input impedance is 500Ω.
2 CDMA-
Same as pin 2, except complementary input. See pin 1.
3GND
Ground connection. For best performance, keep traces physically short and connect immediately to ground plane.
4FM+
FM balanced input pin. This pin is internally DC-biased and should be DC-blocked if connectedto a device with DC prese nt. For single-ended input operation, one pin is used as an input and the other FM input is AC-coupled to ground. The balanced input impedance is 1.7kΩ,while the single-ended input impedance is 850Ω.
5FM-
Same as pin 4, except complementary input. See pin 4.
6GND
Same as pin 3.
7 IN SELECT
Selects which IF input (CDMA or FM) is used. This is a digitally con­trolled input. A logic "high" selects the CDMA input amplifier. A logic "low" selects the FM input amplifier. The threshold voltage is approxi­mately 1.3V.
8NC
No connection pin. This pin is internally biased and should not be con­nected to any external circuitry, including ground or V
CC
.
9OUT-
Balanced output pin. This is an open-coll ector output, designed to operate int o a 250balanced load. The load sets the operating imped­ance, but an external choke or m atching inductor to V
CC
must also be
supplied in order to correctly bias this output. This bias inductor is typi­cally incorp o rated in the matchingnetworkb e tween the output and next stage. Because this pin is biased to V
CC
, a DC-blocking capacitor must
be used if the next stage’s input has a DC path to ground.
10 OUT+
Same as pin 9, except complementary output. See pin 9.
11 GND
Same as pin 3.
12 GND
Same as pin 3.
13 VCC
Supply Voltage pin. External bypassing is required. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane.
14 VCC
Same as pin 13.
15 VCC
Same as pin 13.
16 GC
Analog gain adjustment for all amplifiers. Valid control ranges are from 0V to 3.0V. Maximum gain is selected with 3.0V. Minimum gain is selectedwith 0V. These voltagesare only valid for a 4.7kDC source impedance.
700
BIAS
700
CDMA-CDMA+
650
BIAS
650
FM-FM+
20 k
IN SELECT
OUT-OUT+
23.5 k
15 k
12.7 k
V
CC
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IF AMPLIERS
Applicatio n Schematic
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9NC
GAIN
CONTROL
IN
SEL.
10 nF
CDMA-
FM IN
CDMA+
IF IN
SELECT
4.7 k GC
10 nF
L1
L1
V
CC
OUT+
OUT-
V
CC
R2
500
C1
C2
Measurement
Reference Plane
Z
LOAD
=500
ZS=500
Z
IN, EFF
=500 ZIN=1 k
Z
S
=850
Z
S, EFF
=333
Z
IN
=850
Measurement
Reference Plane
Z
LOAD,EFF
=250
Z
OUT
=500
R1 sets the CDMA balanced input impedance. The effective input impedance is then 500 Ω. R2 sets the balanced output impedance to 500 . L1 and C2 serve dual purposes. L1 serves
as an output bias choke, and C2 serves as a series DC block. In addition, the values of L1 and C2 may be chosen to form an impedance matching network of the load impedance is not 500 . Otherwise, the values of L1 and C1 are chosen to form a parallel-resonant tank circuit at the IF when the load impedance is 500 Ω.
10 nF
10 nF
FM IF Filter
CDMA IF Filter
R1
1k
C2
C1
C2
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IF AMPLIERS
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GAIN
CONTROL
IN
SEL.
C7
10 nF
P2-1
C8
10 nF
R1
1k
C1
10 nF
C2
10 nF
C3
15 pF
C4
15 pF
T1
50 Ω µstrip
J1
CDMA
L3
330 nH
C6
10 pF
50 Ω µstrip
J2 FM
C14
10 nF
C13
10 nF
P1-1
P1-3
R2
500
L4
390 nH
C9
10 nF
C10
10 nF
P1-3
C12
15 pF
C11
15 pF
T2
50 Ω µstrip
J3
OUT
L1
390 nH
2617400-
P1
1 2 3
P1-1 GC
GND
P1-3 VCC
P2
1 2 3
NC
GND
P2-1 SELECT
L2
390 nH
C5
10 nF
L5
390 nH
R3
4.7 k
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RF2617
Rev B4 010717
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IF AMPLIERS
Evaluation Board Layout
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RF2617
Rev B4 010717
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IF AMPLIERS
Gain versus Gain Control Voltage
(VCC=2.7 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
0.00.51.01.52.02.5
GC (V)
Gain (dB)
-30 C +25 C +80 C
Gain versus Gain Control Voltage
(VCC=3.0 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
0.0 0.5 1.0 1.5 2.0 2.5
GC (V)
Gain (dB)
-30 C +25 C +80 C
Gain versus Gain Control Voltage
(VCC=3.3 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
0.0 0.5 1.0 1.5 2.0 2.5
GC (V)
Gain (dB)
-30 C +25 C +80 C
Input IP3 versus Gain
(VCC=2.7 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Gain (dBm)
IIP3 (dBm)
-30 C +25 C +80 C
Input IP3 versus Gain
(VCC=3.0 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Gain (dBm)
IIP3 (dBm)
-30 C +25 C +80 C
Input IP3 versus Gain
(VCC=3.3 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Gain (dBm)
IIP3 (dBm)
-30 C +25 C +80 C
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RF2617
Rev B4 010717
10
IF AMPLIERS
OutputIP3 versus Gain
(VCC=2.7 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Gain (dBm)
OIP3 (dBm)
-30C +25 C +80 C
Output IP3 versus Gain
(VCC=3.0 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Gain (dBm)
OIP3 (dBm)
-30 C +25 C +80 C
Output IP3 versus Gain
(VCC=3.3 V, 85 MHz)
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Gain (dBm)
OIP3 (dBm)
-30 C +25 C +80 C
NoiseFigureversusGain
(VCC=2.7 V, 85 MHz)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
-60.0 -40.0 - 20.0 0.0 20.0 40.0 60.0
Gain (dB)
NF (dB)
-30 C +25 C +80 C
Noise Figure versus Gain
(VCC=3.0 V, 85 MHz)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
-60.0 -40.0 - 20.0 0.0 20.0 40.0 60.0
Gain (dB)
NF (dB)
-30 C +25 C +80 C
NoiseFigureversusGain
(VCC=3.3 V, 85 MHz)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
-60.0 -40.0 - 20.0 0.0 20.0 40.0 60.0
Gain (dB)
NF (dB)
-30 C +25 C +80 C
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