Page 1
INTEGRATED CIRCUITS
SA626
Low voltage high performance mixer FM
IF system with high-speed RSSI
Product specification
IC17 Data Handbook
1997 Sept 25
Page 2
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF
system with high-speed RSSI
DESCRIPTION
The SA626 is a low-voltage high performance monolithic FM IF
system incorporating a mixer/oscillator, two limiting intermediate
frequency amplifiers, quadrature detector, high speed logarithmic
received signal strength indicator (RSSI), voltage regulator and
audio and fast RSSI op amps. The SA626 is available in 20-lead
SOL (surface-mounted small outline large package) and 20-lead
SSOP (shrink small outline package).
The SA626 was designed for high bandwidth portable
communication applications and will function down to 2.7V . The RF
section is similar to the famous NE605. The audio and RSSI
outputs have amplifiers. The RSSI output has access to the
feedback pin. This enables the designer to level adjust the outputs
or add filtering.
SA626 incorporates a power down mode which powers down the
device when Pin 8 is low. Power down logic levels are CMOS and
TTL compatible with high input impedance.
APPLICATIONS
•Digital cordless telephones
•Digital cellular telephones
•Digital cellular base stations
•Portable high performance communications receivers
•Single conversion VHF/UHF receivers
•SCA receivers
•RF level meter
•Spectrum analyzer
•Instrumentation
•FSK and ASK data receivers
•Log amps
•Wideband low current amplification
FEA TURES
•Fast RSSI rise and fall times
•Low power consumption: 6.5mA typ at 3V
•Power down mode (I
= 200µA)
CC
PIN CONFIGURATION
•Mixer input to >500MHz
•Mixer conversion power gain of 11dB at 240MHz
•Mixer noise figure of 14dB at 240MHz
•XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz, local
•92dB of IF Amp/Limiter power gain
•25MHz limiter small signal bandwidth
•Temperature compensated logarithmic Received Signal Strength
•Audio output internal buffer
•RSSI output internal buffer
•Internal op amps with rail-to-rail outputs
•10.7MHz filter matching (330Ω) reduces external component
•Excellent sensitivity: 0.54µV into 50Ω matching network for 12dB
•SA626 meets cellular radio specifications
•ESD hardened
SA626
D and DK Packages
RF
1
IN
RF BYPASS 2
XTAL OSC EMITTER 3
XTAL OSC (BASE) 4
V
5
CC
RSSI FEEDBACK
RSSI
POWER DOWN CONTROL
AUDIO OUT
QUADRATURE IN
oscillator can be injected)
Indicator (RSSI) with a dynamic range in excess of 90dB
count; suitable for crystal/ceramic/LC filters
SINAD (Signal to Noise and Distortion ratio) for 1kHz tone with RF
at 240MHz and IF at 10.7MHz
6
7
OUT
8
9
10
Figure 1. Pin Configuration
20 MIXER OUT
19
IF AMP DECOUPLING
18 IF AMP IN
17
IF AMP DECOUPLING
16 IF AMP OUT
15 GND
14 LIMITER IN
LIMITER DECOUPLING
13
12
LIMITER DECOUPLING
11 LIMITER OUT
SR00470
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
20-Pin Plastic Small Outline Large (SOL) package (Surface-mount) -40 to +85°C SA626D SOT163-1
20-Pin Plastic Shrink Small Outline Package (Surface-mount) -40 to +85°C SA626DK
1997 Sept 25 853-1723 18427
2
SOT266-1
Page 3
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
BLOCK DIAGRAM
20 19 18 17 16 15 14 13 12 11
IF
AMP
MIXER
OSCILLATOR
EB
Figure 2. Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNITS
T
V
V
θ
CC
IN
STG
T
A
JA
Single supply voltage 0.3 to 7 V
Voltage applied to any other pin –0.3 to (VCC+0.3) V
Storage temperature range -65 to +150
Operating ambient temperature range SA626 –40 to +85
Thermal impedance D package 90
DK package 117
GND
V
CC
RSSI
FAST
RSSI
LIMITER
QUAD
+–
PWR
DWN
+–
AUDIO
10987654321
SA626
SR00471
°C
°C
°C/W
°C/W
DC ELECTRICAL CHARACTERISTICS
VCC = +3V, TA = 25°C; unless otherwise stated.
LIMITS
SYMBOL PARAMETER TEST CONDITIONS SA626 UNITS
MIN TYP MAX
V
I
I
t
t
OFF
Power supply voltage range 2.7 3.0 5.5 V
CC
DC current drain Pin 8 = HIGH 5.5 6.5 7.5 mA
CC
Standby Pin 8 = LOW 0.2 0.5 mA
CC
Input current Pin 8 LOW –10 10 µA
Pin 8 HIGH –10 10 µA
Input level Pin 8 LOW 0 0.3V
Pin 8 HIGH 0.7V
Power up time RSSI valid (10% to 90%) 10 µs
ON
CC
Power down time RSSI invalid (90% to 10%) 5 µs
CC
V
CC
V
V
1997 Sept 25
3
Page 4
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
AC ELECTRICAL CHARACTERISTICS
TA = 25°C; VCC = +3V, unless otherwise stated. RF frequency = 240.05MHz + 14.5dBV RF input step-up; IF frequency = 10.7MHz; RF level =
-68dBm; FM modulation = 1kHz with ±125kHz peak deviation. Audio output with C-message weighted filter and de-emphasis filter. Test circuit
Figure 1. The parameters listed below are tested using automatic test equipment to assure consistent electrical characteristics. The limits do
not represent the ultimate performance limits of the device. Use of an optimized RF layout will improve many of the listed parameters.
LIMITS
SYMBOL PARAMETER TEST CONDITIONS SA626 UNITS
MIN TYP MAX
Mixer/Osc section (ext LO = 160mV
f
Input signal frequency 500 MHz
IN
f
OSC
IF section
THD Total harmonic distortion -43 –38 dB
S/N Signal-to-noise ratio No modulation for noise 60 dB
RF/IF section (int LO)
External oscillator (buffer) 500 MHz
Noise figure at 240MHz 14 dB
Third-order input intercept point Matched f1=240.05; f2=240.35MHz -16 dBm
Conversion power gain Matched 14.5dBV step-up 8 11 14 dB
RF input resistance Single-ended input 700 Ω
RF input capacitance 3.5 pF
Mixer output resistance (Pin 20) 330 Ω
IF amp power gain 38 dB
Limiter amp power gain 54 dB
Input limiting -3dB Test at Pin 18 –105 dBm
AM rejection 80% AM 1kHz 50 dB
Audio level Unity gain 120 160 200 mV
Audio DC level Pin 9, no signal 1.0 V
SINAD sensitivity IF level = -111dBm 16 dB
IF RSSI output with buffer IF level = -118dBm 0.2 0.5 V
IF RSSI output rise time IF frequency = 10.7MHz
(10kHz pulse, no 10.7MHz filter) RF level = -56dBm 1.2 µs
(no RSSI bypass capacitor) RF level = -28dBm 1.1 µs
IF RSSI output fall time IF frequency = 10.7MHz
(10kHz pulse, no 10.7MHz filter) RF level = -56dBm 2.0 µs
(no RSSI bypass capacitor) RF level = -28dBm 7.3 µs
RSSI range 90 dB
RSSI accuracy +1.5 dB
IF input impedance 330 Ω
IF output impedance 330 Ω
Limiter input impedance 330 Ω
Limiter output impedance 300 Ω
Limiter output level with no load 130 mV
Audio level RF level = -10dBm 160 mV
System RSSI output RF level = -10dBm 1.4 V
System SINAD RF level = -106dBm 12 dB
RMS
)
IF level = -68dBm 0.3 0.6 1.0 V
IF level = -10dBm 0.9 1.3 1.8 V
SA626
RMS
RMS
RMS
1997 Sept 25
4
Page 5
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
9.0
8.5
V
8.0
7.5
7.0
6.5
SUPPLY CURRENT (mA)
6.0
5.5
5.0
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
= 5V
CC
VCC = 3V
= 2.7V
V
CC
Supply Current vs Temp and Supply Voltage Power Down Supply Current vs Temp and Supply Voltage
20
19
18
17
16
15
14
13
12
MIXER GAIN (dB)
11
10
9
8
7
6
5
Mixer Power Gain vs Temperature and Supply Voltage
300
275
250
225
200
175
150
AUDIO (mV)
125
100
75
50
25
= 5V
V
CC
VCC = 3V
= 2.7V
V
CC
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
0
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
TEMPERATURE (°C)
= 5V
V
CC
VCC = 3V
= 2.7V
V
CC
Third Order Input Intercept Point vs Temp and Supply Voltage
Audio Output Level vs. Temp and Supply Voltage
Figure 3. Performance Characteristics
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
POWER DOWN SUPPLY CURRENT (mA)
0.05
0.00
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
–6
–8
–10
–12
–14
–16
–18
–20
–22
–24
–26
THIRD ORDER INPUT INTERCEPT POINT dBm)
–28
–30
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
20
0
–20
–40
AUDIO (dB)
–60
–80
–100
–120
–50–40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
12dB SINAD and Relative Audio, THD, Noise and AM
Rejection for VCC = 3V vs Temperature RF = 240MHz,
Level = –68dBm, Deviation = 125kHz
= 5V
V
CC
V
= 3V
CC
VCC = 2.7V
V
= 5V
CC
VCC = 3V
= 2.7V
V
CC
AUDIO
AM REJECTION
DISTORTION
NOISE
12dB SINAD
SA626
100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
SR00472
1997 Sept 25
5
Page 6
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
RSSI (V)
RSSI (V)
10
0
–10
–20
–30
–40
–50
–60
–70
RELATIVE TO AUDIO OUTPUT (dB)
–80
–90
–110
0
–10
–20
–30
–40
–50
–60
–70
–80
IF OUTPUT POWER (dBm)
–90
–100
–110
–65
Mixer Third Order Intercept and Compression
–100
–60
10
RELATIVE TO AUDIO OUTPUT (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–110
NOISE
–100
AUDIO
AM REJECTION
THD+N
–90
–80
RF INPUT LEVEL (dBm)
–70
–60
–50
–40
–30
–20
RSSI
–10
Receiver RF Performance — T = 25°C,
Audio Level = 129mV
10
0
–10
–20
–30
–40
–50
–60
RELATIVE TO AUDIO OUTPUT (dB)
–70
–80
–90
–110
Receiver RF Performance – T = 85°C, Audio Level = 131mV
–100
AUDIO
AM REJECTION
THD+N
NOISE
–90
–80
–70
–60
–50
RMS
–40
–30
RSSI
–20
–10
2
1.8
1.6
1.4
1.3
1.0
0.8
0.6
0.4
0.2
0
0
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
RMS
SA626
AUDIO
AM REJECTION
THD+N
NOISE
RSSI
–90
–80
–70
–60
–50
–40
–30
–30
RMS
–25
–20
–20
RF INPUT LEVEL (dBm)
Receiver RF Performance — T = –40°C,
Audio Level = 118mV
–55
–50
–45
–40
RF INPUT POWER (dBm)
–35
–10
–15
2.0
1.8
1.6
1.4
1.2
1.0
RSSI (V)
0.8
0.6
0.4
0.2
0.0
0
–10
1997 Sept 25
SR00473
Figure 4. Performance Characteristics
6
Page 7
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
50.00
48.00
46.00
44.00
V
= 5V
30.00
CC
VCC = 3V
= 2.7V
V
CC
50.00
70.00
90.00
42.00
40.00
38.00
POWER GAIN (dB)
36.00
34.00
32.00
30.00
–50.00
–30.00
10.00
–10.00
TEMPERATURE (°C)
SA626 IF Amplifier Gain vs Temperature vs Supply Voltage
Figure 5. Performance Characteristics
65.00
63.00
61.00
59.00
57.00
55.00
53.00
POWER GAIN (dB)
51.00
49.00
47.00
45.00
–50.00
SA626 Limiting Amplifier Gain vs Temperature
–30.00
–10.00
TEMPERATURE (°C)
vs Supply Voltage
10.00
30.00
= 5V
V
CC
VCC = 3V
V
= 2.7V
CC
50.00
SA626
70.00
90.00
SR00474
CIRCUIT DESCRIPTION
The SA626 is an IF signal processing system suitable for second IF
or single conversion systems with input frequency as high as 1GHz.
The bandwidth of the IF amplifier is about 40MHz, with 38dB of
power gain from a 50Ω source. The bandwidth of the limiter is about
28MHz with about 54dB of power gain from a 50Ω source.
However, the gain/bandwidth distribution is optimized for 10.7MHz,
330Ω source applications. The overall system is well-suited to
battery operation as well as high performance and high quality
products of all types, such as cordless and cellular hand-held
phones.
The input stage is a Gilbert cell mixer with oscillator. Typical mixer
characteristics include a noise figure of 14dB, conversion power
gain of 11dB, and input third-order intercept of -16dBm. The
oscillator will operate in excess of 1GHz in L/C tank configurations.
Hartley or Colpitts circuits can be used up to 100MHz for xtal
configurations. Butler oscillators are recommended for xtal
configurations up to 150MHz.
The output of the mixer is internally loaded with a 330Ω resistor
permitting direct connection to a 10.7MHz ceramic filter. The input
resistance of the limiting IF amplifiers is also 330Ω. With most
10.7MHz ceramic filters and many crystal filters, no impedance
matching network is necessary. To achieve optimum linearity of the
log signal strength indicator , there must be a 3dB insertion loss
between the first and second IF stages. If the IF filter or interstage
network does not cause 3dB insertion loss, a fixed or variable
resistor can be added between the first IF output (Pin 16) and the
interstage network.
The signal from the second limiting amplifier goes to a Gilbert cell
quadrature detector . One port of the Gilbert cell is internally driven
by the IF. The other output of the IF is AC-coupled to a tuned
quadrature network. This signal, which now has a 90
° phase
relationship to the internal signal, drives the other port of the
multiplier cell.
Overall, the IF section has a power gain of 92dB. For operation at
intermediate frequency at 10.7MHz. Special care must be given to
layout, termination, and interstage loss to avoid instability.
The demodulated output of the quadrature drives an internal op
amp. This op amp is configured as a unity gain buffer. It can drive
an AC load as low as 5kΩ with a rail-to-rail output.
A log signal strength indicator completes the circuitry. The output
range is greater than 90dB and is temperature compensated. This
log signal strength indicator exceeds the criteria for AMPs or TACs
cellular telephone, and RCR-28 cordless telephone. This signal
drives an internal op amp. The op amp is capable of rail-to-rail
output. It can be used for gain, filtering, or 2nd-order temperature
compensation of the RSSI, if needed.
1997 Sept 25
7
Page 8
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
PIN FUNCTIONS
PIN
No.
1 RF IN +1.07 6
2
PIN
MNEMONIC
RF
DC V EQUIVALENT CIRCUIT
0.8k
1
0.8k
No.
2
+1.07 7
PIN
PIN
MNEMONIC
RSSI
FEEDBACK
RSSI
OUTBYPASS
DC V EQUIVALENT CIRCUIT
V
CC
+0.20
+0.20
—
6
+
—
+
SA626
V
CC
7
XTAL
3
XTAL
4
5V
CC
+1.57 8
4
3
18k
MIX
150µA
+2.32 9
V
5
REF
+3.00 10
BANDGAP
POWER
DOWNOSC
AUDIO
OUTOSC
QUAD.
IN
+2.75
+1.09
+3.00
R
8
R
V
CC
+
—
80k
10
9
20µA
1997 Sept 25
SR00475
Figure 6. Pin Functions
8
Page 9
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
PIN FUNCTIONS (continued)
PIN
No.
11
12
PIN
MNEMONIC
LIMITER
OUT
LIMITER
DC V EQUIVALENT CIRCUIT
PIN
No.
+1.35 16
11
8.8k
+1.23 17
PIN
MNEMONIC
IF
AMP OUT
IF AMP
DECOUPDECOUP
DC V EQUIVALENT CIRCUIT
+1.22
140Ω
8.8k
+1.22
SA626
16
14
+1.23 18
330Ω
50µA
12
13
+1.23 19
13
14
LIMITER
LIMITER
15 GND 0 20
IF
AMP INCOUPLING
IF AMP
DECOUPIN
MIXER
OUT
+1.22
+1.22
+1.03
18
330Ω
50µA
17
19
110Ω
20
400µA
1997 Sept 25
SR00476
Figure 7. Pin Functions (cont.)
9
Page 10
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
IF/LIM OUT
L5
MIXER
C12
C11
FLT1
21
21
C13
20 19 18 17 16 15 14
R2
C14
IF
AMP
R4
R3
IF/LIM IN
C16
R5
21 21
C15
R6
FLT2
R7
C17
R9
R8
C19
C18
13 12 1 1
LIMITER
SA626
R11
C20
R10
SW5
MIXER
OSCILLATOR
C3C1
*L1
RF IN LO IN
C2
*L2
L3
C4
C5
Automatic Test Circuit Component List
R1
8.2kΩ select
R2
6.42kΩ
R3
347.8Ω
R4
49.9Ω
R5
1kΩ
R6
49.9Ω
R7
6.42kΩ
R8
347.8Ω
R9
49.9Ω
R10
1kΩ
R11
49.9Ω
*NOTE: This value can be reduced when a battery is the power source.
C1
0.1µF
C2
1–5pF select for input match
C3
0.1µF
C4
0.1µF
C5
1–5pF select for input match
C6
100pF
*C7
6.8µF 10V
C8
1µF
C9
39pF select
C10
0.1µF
C11
0.1µF
Figure 8. SA626 240.5MHz (RF) / 10.7MHz (IF) Test Circuit
C21
PWR
DWN
QUAD
–
+
AUDIO
RSSI
+
V
CC
–
10987654321
C6
C7
PWR
RSSI
V
CC
OUT
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
DWN
CTRL
160pF select
1000pF
0.1µF
1000pF
0.1µF
0.1µF
1000pF
1000pF
0.1µF
1pF
FLT
FLT
L1
L2
L3
L4
L5
FLT1
FLT2
FLT3
FLT4
C8
R1
3
4
AUDIO
C9
C10
OUT
L4
150nH select for input match
22nH select for input match
47nH select for input match
5.6µH select for input match
1.27–2.25µH select for mixer
output match
10.7MHz (Murata SFE10.7MA5-A)
10.7MHz (Murata SFE10.7MA5-A)
“C” message weighted
Active de-emphasis
SR00477
1997 Sept 25
10
Page 11
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
C1
5–30pF
C2
22pF
C4
1.0nF
L1
33nH
C3
0.1µF
U1
1
RF IN
2
RF BYPASS
XTAL
3
OSC (EMITTER)
XTAL
4
OSC (BASE)
5
V
CC
6
RSSI FEEDBACK
SMA
RF IN
SMA
RF IN
229.3MHz
C6
39pF
240MHz
5–30pF
C5
L2
47nH
MIXER OUT
IF AMP
DECOUPLING
IF IN
IF AMP
DECOUPLING
IF OUT
GROUND
20
19
18
17
16
15
C17
0.1µF
1
1
0.1µF
C16
I
I
10.7MHz
FLT1
G
10.7MHz
FLT1
G
2
SA626
3
O
2
3
O
V
CC
+
C8
6.8µF
RSSI
PWR DWN CTRL
AUDIO
C7
0.1µF
C10
NOTE: For SA626 C10 and R3 are not required.
R3
Figure 9. SA626 240MHz (RF) / 10.7MHz (IF) Application Circuit
R4
12k
7
8
9
10
RSSI OUT
PD CTRL
AUDIO OUT
QUAD
SA626/636
C11
39pF
C12
0.1µF
L3
5.6µH
LIMITER IN
LIMITER DEC
LIMITER DEC
LIMITER OUT
C13
4.7pF
14
13
12
11
C14 C15
0.1µF 0.1µF
SR00478
1997 Sept 25
11
Page 12
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
RF GENERATOR
240MHz
LO / GENERATOR
229.3MHz
DC VOLTMETER
SCOPE
Figure 10. SA626 Application Circuit Test Set Up
NOTES:
1. C-message: The C-message and de-emphasis filter combination has a peak gain of 10 for accurate measurements. Without the gain, the
measurements may be affected by the noise of the scope and HP8903A analyzer. The de-emphasis filter has a fixed -6dB/Octave sl ope
between 300Hz and 3kHz.
2. Ceramic filters: The ceramic filter can be SFE10.7MA5-A made by Murata which has 280kHz IF bandwidth.
3. RF generator: Set your RF generator at 240.000MHz, use a 1kHz modulation frequency and a 125kHz deviation.
4. Sensitivity: The measured typical sensitivity for 12dB SINAD should be 0.54µV or –112dBm at the RF input.
5. Layout: The layout is very critical in the performance of the receiver. We highly recommend our demo board layout.
6. RSSI: The smallest RSSI voltage (i.e., when no RF input is present and the input is terminated) is a measure of the quality of the layout and
design. If the lowest RSSI voltage is 500mV or higher, it means the receiver is in regenerative mode. In that case, the receiver sensitivity
will be worse than expected.
7. Supply bypass and shielding: All of the inductors, the quad tank, and their shield must be grounded. A 0.1µF bypass capacitor on the
supply pin improves sensitivity.
SA626 DEMO BOARD
RSSI AUDIO
C–MESSAGE
DE-EMPHASIS
FILTER
HP8903A DISTORTION
ANALYZER
SA626
VCC = 3V
SR00479
1997 Sept 25
12
Page 13
Philips Semiconductors Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
RF
IN
C3
C2
C1
LO
V
R
PD
A
C6
L2
C5
+C8
C9R2R1
R3
L1
C4
C7
R4
C12
C10
TOP SILK SCREEN (SSOP) TOP SILK SCREEN (SOL)
C17
C16
FLT2
C13
C11
C14
TP1
L3
FLT1
C15
LO
V
R
PD
A
C6
C5
+C8
C9R2R1
R3
SA626
RF
IN
#30017
C3
C2
C1
C17
L2
L1
C4
C7
R4
C10
C12
C16
FLT2
FLT1
C14
C13
C11
L3
C15
TP1
1997 Sept 25
TOP VIEW (SSOP) TOP VIEW (SOL)
BOTTOM VIEW (SSOP) BOTTOM VIEW (SOL)
Figure 11. SA626 Demoboard Layout (Not Actual Size)
13
SR00480
Page 14
Philips Semiconductors RF Communications Products Product specification
Low voltage high performance mixer FM IF system
SA626
with high-speed RSSI
SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
1997 Sept 25
14
Page 15
Philips Semiconductors RF Communications Products Product specification
Low voltage high performance mixer FM IF system
SA626
with high-speed RSSI
SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm SOT266-1
1997 Sept 25
15
Page 16
Philips Semiconductors RF Communications Products Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
DEFINITIONS
Data Sheet Identification Product Status Definition
Objective Specification
Preliminary Specification
Product Specification
Formative or in Design
Preproduction Product
Full Production
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICA TIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation
register eligible circuits under the Semiconductor Chip Protection Act.
Copyright Philips Electronics North America Corporation 1993
All rights reserved. Printed in U.S.A.
98-2006-260
1997 Sept 25
16
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