PHILIPS SA626DK

INTEGRATED CIRCUITS
SA626
Low voltage high performance mixer FM
IF system with high-speed RSSI
Product specification
IC17 Data Handbook
1997 Sept 25
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF
system with high-speed RSSI
DESCRIPTION
SA626
PIN CONFIGURATION
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).
D and DK Packages
RFIN
1
RF BYPASS 2
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.
19 IF AMP DECOUPLING
XTAL OSC EMITTER
3
18 IF AMP IN
XTAL OSC (BASE)
4
17
VCC
5
16 IF AMP OUT
RSSI FEEDBACK 6
RSSIOUT
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.
20 MIXER OUT
7
IF AMP DECOUPLING
15 GND
14 LIMITER IN
POWER DOWN CONTROL 8
13
LIMITER DECOUPLING
AUDIO OUT 9
12
LIMITER DECOUPLING
QUADRATURE IN 10
11
LIMITER OUT
SR00470
Figure 1. Pin Configuration
APPLICATIONS
• 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
• 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
oscillator can be injected)
• 92dB of IF Amp/Limiter power gain
• 25MHz limiter small signal bandwidth
• Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 90dB
• Audio output internal buffer
• RSSI output internal buffer
• Internal op amps with rail-to-rail outputs
• 10.7MHz filter matching (330Ω) reduces external component
count; suitable for crystal/ceramic/LC filters
• Excellent sensitivity:
FEATURES
0.54µV into 50Ω matching network for 12dB
SINAD (Signal to Noise and Distortion ratio) for 1kHz tone with RF
at 240MHz and IF at 10.7MHz
• Fast RSSI rise and fall times
• Low power consumption: 6.5mA typ at 3V
• Power down mode (ICC = 200µA)
• SA626 meets cellular radio specifications
• ESD hardened
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
SOT266-1
1997 Sept 25
2
853-1723 18427
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
BLOCK DIAGRAM
20
19
18
17
16
15
14
13
12
11
GND
IF
AMP
LIMITER
MIXER
– +
VCC
1
2
E
B
3
4
QUAD
FAST
RSSI
OSCILLATOR
PWR
DWN
AUDIO
RSSI
5
6
– +
7
8
9
10
SR00471
Figure 2. Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNITS
0.3 to 7
V
–0.3 to (VCC+0.3)
V
Storage temperature range
-65 to +150
°C
TA
Operating ambient temperature range SA626
–40 to +85
°C
θJA
Thermal impedance
D package
90
°C/W
DK package
117
°C/W
VCC
Single supply voltage
VIN
Voltage applied to any other pin
TSTG
DC ELECTRICAL CHARACTERISTICS
VCC = +3V, TA = 25°C; unless otherwise stated.
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
VCC
Power supply voltage range
ICC
DC current drain
Pin 8 = HIGH
ICC
Standby
Pin 8 = LOW
Input current
Input level
tON
Power up time
tOFF
Power down time
1997 Sept 25
SA626
UNITS
MIN
TYP
MAX
2.7
3.0
5.5
V
5.5
6.5
7.5
mA
0.2
0.5
mA
Pin 8 LOW
–10
10
µA
Pin 8 HIGH
–10
10
µA
Pin 8 LOW
0
0.3VCC
V
Pin 8 HIGH
0.7VCC
VCC
V
RSSI valid (10% to 90%)
10
µs
RSSI invalid (90% to 10%)
5
µs
3
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
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
MIN
TYP
UNITS
MAX
Mixer/Osc section (ext LO = 160mVRMS)
fIN
fOSC
Input signal frequency
500
MHz
External oscillator (buffer)
500
MHz
Noise figure at 240MHz
14
dB
-16
dBm
Third-order input intercept point
Conversion power gain
Matched f1=240.05; f2=240.35MHz
Matched 14.5dBV step-up
8
11
14
dB
700
Ω
3.5
pF
330
Ω
IF amp power gain
38
dB
Limiter amp power gain
54
dB
–105
dBm
RF input resistance
Single-ended input
RF input capacitance
Mixer output resistance
(Pin 20)
IF section
Input limiting -3dB
Test at Pin 18
AM rejection
80% AM 1kHz
Audio level
Audio DC level
SINAD sensitivity
THD
Total harmonic distortion
S/N
Signal-to-noise ratio
IF RSSI output with buffer
IF RSSI output rise time
(10kHz pulse, no 10.7MHz filter)
(no RSSI bypass capacitor)
IF RSSI output fall time
Unity gain
50
120
Pin 9, no signal
160
dB
200
1.0
IF level = -111dBm
V
16
-43
mVRMS
dB
–38
dB
No modulation for noise
60
IF level = -118dBm
0.2
0.5
dB
V
IF level = -68dBm
0.3
0.6
1.0
V
IF level = -10dBm
0.9
1.3
1.8
V
IF frequency = 10.7MHz
RF level = -56dBm
1.2
µs
RF level = -28dBm
1.1
µs
µs
IF frequency = 10.7MHz
(10kHz pulse, no 10.7MHz filter)
RF level = -56dBm
2.0
(no RSSI bypass capacitor)
RF level = -28dBm
7.3
µs
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
mVRMS
mVRMS
RSSI range
RF/IF section (int LO)
Audio level
RF level = -10dBm
160
System RSSI output
RF level = -10dBm
1.4
V
System SINAD
RF level = -106dBm
12
dB
1997 Sept 25
4
Philips Semiconductors
Product specification
9.0
0.50
8.5
0.45
POWER DOWN SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
Low voltage high performance mixer FM IF system
with high-speed RSSI
VCC = 5V
8.0
7.5
VCC = 3V
7.0
6.5
VCC = 2.7V
6.0
5.5
0.40
0.35
VCC = 5V
0.30
VCC = 3V
0.25
0.20
VCC = 2.7V
0.15
0.10
0.05
5.0
–50 –40 –30 –20 –10 0 10 20 30 40
TEMPERATURE (°C)
50
60
0.00
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100
TEMPERATURE (°C)
70 80 90
Supply Current vs Temp and Supply Voltage
Power Down Supply Current vs Temp and Supply Voltage
–6
20
18
17
16
15
VCC = 5V
14
13
VCC = 3V
12
11
10
–8
THIRD ORDER INPUT INTERCEPT POINT dBm)
19
MIXER GAIN (dB)
SA626
VCC = 2.7V
9
8
7
–10
–12
–14
VCC = 5V
–16
–18
–20
–22
VCC = 3V
VCC = 2.7V
–24
–26
–28
6
5
–50 –40 –30 –20 –10
0
10 20 30 40
50
60
–30
–50 –40 –30 –20 –10
70 80 90
TEMPERATURE (°C)
0
10 20 30 40
50
60
70 80 90
TEMPERATURE (°C)
Third Order Input Intercept Point vs Temp and Supply Voltage
Mixer Power Gain vs Temperature and Supply Voltage
20
300
AUDIO
275
0
250
225
–20
VCC = 5V
AM REJECTION
AUDIO (dB)
AUDIO (mV)
200
175
VCC = 3V
150
125
–40
DISTORTION
–60
VCC = 2.7V
100
NOISE
–80
75
–100
50
12dB SINAD
25
0
–50 –40 –30 –20 –10
–120
0 10 20 30 40
TEMPERATURE (°C)
50
60
–50 –40 –30 –20 –10 0 10 20 30 40 50
TEMPERATURE (°C)
70 80 90
70 80 90
12dB SINAD and Relative Audio, THD, Noise and AM
Rejection for VCC = 3V vs Temperature RF = 240MHz,
SR00472
Level = –68dBm, Deviation = 125kHz
Audio Output Level vs. Temp and Supply Voltage
Figure 3. Performance Characteristics
1997 Sept 25
60
5
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
–10
–20
1.8
0
1.6
–10
1.4
AM REJECTION
1.3
RSSI
–40
1.0
THD+N
–50
0.8
–60
RSSI (V)
–30
0.6
NOISE
AUDIO
1.8
1.6
1.4
–20
AM REJECTION
–30
1.2
–40
1.0
–50
0.8
THD+N
NOISE
–60
0.6
0.4
–70
0.0
RF INPUT LEVEL (dBm)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
RSSI
0
–10
–90
–20
0
–30
–90
–40
0.2
–50
–80
–60
0.2
–70
–80
–80
0.4
–90
–70
–100
RSSI (V)
AUDIO
–110
RELATIVE TO AUDIO OUTPUT (dB)
0
2.0
10
2
RELATIVE TO AUDIO OUTPUT (dB)
10
SA626
RF INPUT LEVEL (dBm)
Receiver RF Performance — T = –40°C,
Audio Level = 118mVRMS
Receiver RF Performance — T = 25°C,
Audio Level = 129mVRMS
10
2
0
1.8
–10
1.6
–20
–10
–20
IF OUTPUT POWER (dBm)
0
1.4
AM REJECTION
RSSI
–30
1.2
–40
1
–50
THD+N
0.8
–60
NOISE
0.6
RSSI (V)
RELATIVE TO AUDIO OUTPUT (dB)
AUDIO
–30
–40
–50
–60
–70
–80
–90
–70
0.4
–10
–15
–20
–25
–30
–35
–40
–45
–50
–55
–60
–110
0
–10
–20
–30
–40
–50
–60
–70
–80
0
–90
–90
–100
0.2
–110
–80
–65
–100
RF INPUT POWER (dBm)
Mixer Third Order Intercept and Compression
Receiver RF Performance – T = 85°C, Audio Level = 131mVRMS
SR00473
Figure 4. Performance Characteristics
1997 Sept 25
6
Philips Semiconductors
Product specification
50.00
65.00
48.00
63.00
46.00
61.00
44.00
59.00
POWER GAIN (dB)
VCC = 5V
42.00
40.00
VCC = 3V
38.00
36.00
VCC = 2.7V
34.00
SA626
VCC = 5V
57.00
VCC = 3V
55.00
53.00
VCC = 2.7V
51.00
49.00
32.00
47.00
30.00
TEMPERATURE (°C)
90.00
70.00
50.00
30.00
10.00
–10.00
–50.00
90.00
70.00
50.00
30.00
10.00
–10.00
–30.00
–50.00
45.00
–30.00
POWER GAIN (dB)
Low voltage high performance mixer FM IF system
with high-speed RSSI
TEMPERATURE (°C)
SA626 Limiting Amplifier Gain vs Temperature
vs Supply Voltage
SA626 IF Amplifier Gain vs Temperature vs Supply Voltage
SR00474
Figure 5. Performance Characteristics
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.
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 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 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 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.
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
1997 Sept 25
7
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
PIN FUNCTIONS
PIN
PIN
DC V
No. MNEMONIC
PIN
PIN
DC V
No. MNEMONIC
EQUIVALENT CIRCUIT
EQUIVALENT CIRCUIT
VCC
RSSI
1
RF IN
+1.07
6
0.8k
FEEDBACK
+0.20
—
6
+
0.8k
1
2
VCC
RF
2
BYPASS
RSSI
+1.07
7
OUT
+0.20
+
7
—
R
XTAL
3
OSC
POWER
18k
+1.57
8
DOWN
+2.75
8
4
R
MIX
VCC
3
XTAL
4
OSC
AUDIO
150µA
+2.32
9
OUT
+1.09
+
9
—
80k
5
5
VCC
VREF
10
QUAD.
+3.00
10
IN
+3.00
BANDGAP
20µA
SR00475
Figure 6. Pin Functions
1997 Sept 25
8
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
PIN FUNCTIONS (continued)
PIN
PIN
DC V
No. MNEMONIC
EQUIVALENT CIRCUIT
PIN
PIN
DC V
No. MNEMONIC
LIMITER
11
OUT
EQUIVALENT CIRCUIT
IF
+1.35
16
AMP OUT
11
+1.22
140Ω
16
8.8k
8.8k
LIMITER
12
DECOUP
IF AMP
+1.23
17
DECOUP
+1.22
14
18
LIMITER
13
COUPLING
IF
330Ω
+1.23
18
AMP IN
330Ω
+1.22
50µA
50µA
12
17
13
19
LIMITER
14
IN
IF AMP
+1.23
19
0
20
DECOUP
+1.22
110Ω
MIXER
15
GND
OUT
20
+1.03
400µA
SR00476
Figure 7. Pin Functions (cont.)
1997 Sept 25
9
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
MIXER
IF/LIM OUT
SA626
IF/LIM IN
R9
R4
R2
C12
R3
1
1
2
19
1
C20
C17
FLT2
2
1
R10
2
C15
C13
20
R8
C14
FLT1
2
R7
R5
C11
L5
R11
R6
C16
18
17
SW5
C19
C18
16
15
14
IF
AMP
13
12
11
LIMITER
MIXER
C21
QUAD
RSSI
OSCILLATOR
– +
VCC
PWR
DWN
– +
AUDIO
1
2
C1
3
4
5
6
7
8
9
10
C4
C3
C6
C8
R1
*L1
C2
L3
C5
FLT
3
C7
*L2
VCC
RF IN
L4
C9
FLT
4
RSSI
OUT
PWR
DWN
CTRL
AUDIO
OUT
C10
LO IN
Automatic Test Circuit Component List
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
8.2kΩ select
6.42kΩ
347.8Ω
49.9Ω
1kΩ
49.9Ω
6.42kΩ
347.8Ω
49.9Ω
1kΩ
49.9Ω
C1
C2
C3
C4
C5
C6
*C7
C8
C9
C10
C11
0.1µF
1–5pF select for input match
0.1µF
0.1µF
1–5pF select for input match
100pF
6.8µF 10V
1µF
39pF select
0.1µF
0.1µF
C12 160pF select
C13 1000pF
C14 0.1µF
C15 1000pF
C16 0.1µF
C17 0.1µF
C18 1000pF
C19 1000pF
C20 0.1µF
C21 1pF
L1
L2
L3
L4
L5
FLT1
FLT2
FLT3
FLT4
*NOTE: This value can be reduced when a battery is the power source.
10.7MHz (Murata SFE10.7MA5-A)
10.7MHz (Murata SFE10.7MA5-A)
“C” message weighted
Active de-emphasis
SR00477
Figure 8. SA626 240.5MHz (RF) / 10.7MHz (IF) Test Circuit
1997 Sept 25
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
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
10.7MHz
FLT1
C1
5–30pF
SMA
RF IN
240MHz
1
I
3
O
G
C17
0.1µF
L1
33nH
2
U1
C2
22pF
1
RF IN
2
RF BYPASS
3
XTAL
OSC (EMITTER)
4
XTAL
OSC (BASE)
5
VCC
MIXER OUT
20
IF AMP
DECOUPLING
19
IF IN
18
IF AMP
DECOUPLING
17
IF OUT
16
C16
0.1µF
C3
0.1µF
SMA
RF IN
C5
5–30pF
C4
1.0nF
229.3MHz
C6
39pF
L2
47nH
10.7MHz
FLT1
1
I
O
3
G
2
6
RSSI FEEDBACK
7
RSSI OUT
8
9
VCC
C8
6.8µF
+
C7
0.1µF
10
GROUND
15
LIMITER IN
14
PD CTRL
LIMITER DEC
13
AUDIO OUT
LIMITER DEC
12
QUAD
LIMITER OUT
11
SA626/636
RSSI
C14
0.1µF
C15
0.1µF
C13
4.7pF
PWR DWN CTRL
R4
12k
L3
5.6µH
C11
39pF
AUDIO
C10
C12
0.1µF
R3
NOTE: For SA626 C10 and R3 are not required.
SR00478
Figure 9. SA626 240MHz (RF) / 10.7MHz (IF) Application Circuit
1997 Sept 25
11
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
RF GENERATOR
240MHz
SA626
SA626 DEMO BOARD
RSSI
AUDIO
VCC = 3V
LO / GENERATOR
229.3MHz
C–MESSAGE
DC VOLTMETER
DE-EMPHASIS
FILTER
SCOPE
HP8903A DISTORTION
ANALYZER
SR00479
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 slope
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.
1997 Sept 25
12
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SA626
FLT2
C7
+C8
C4
C4
C5
FLT2
C15
TP1
C11
L3
C13
R4
PD
A
C11
R4
C12
C10
C14
R
TP1
R3
FLT1
R2
R1
C9
FLT1
R3
C10
C14
R1
C9
R2
C13
C15
V
R
L3
C12
TOP SILK SCREEN (SSOP)
TOP SILK SCREEN (SOL)
TOP VIEW (SSOP)
TOP VIEW (SOL)
BOTTOM VIEW (SSOP)
BOTTOM VIEW (SOL)
Figure 11. SA626 Demoboard Layout (Not Actual Size)
1997 Sept 25
C17
L1
LO
C7
+C8
L2
C16
C6
C17
C16
L1
V
PD
A
C2
C3
C2
C3
C6
L2
C5
C1
C1
LO
#30017
RF
IN
RF
IN
13
SR00480
Philips Semiconductors RF Communications Products
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SO20: plastic small outline package; 20 leads; body width 7.5 mm
1997 Sept 25
14
SA626
SOT163-1
Philips Semiconductors RF Communications Products
Product specification
Low voltage high performance mixer FM IF system
with high-speed RSSI
SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm
1997 Sept 25
15
SA626
SOT266-1
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
Formative or in Design
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Preliminary Specification
Preproduction Product
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.
Product Specification
Full Production
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 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 APPLICATIONS
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
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