Philips NE614AN, NE614AD, SA614AD, SA614AN Datasheet

Philips Semiconductors
SA614A
Low power FM IF system
Product specification Replaces data of December 15, 1994
1997 Nov 07
RF COMMUNICATIONS PRODUCTS
IC17 Data Handbook
SA614ALow power FM IF system
2
1997 Nov 07 853-0594 18663
DESCRIPTION
The SA614A is an improved monolithic low-power FM IF system incorporating two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator, and voltage regulator. The SA614A features higher IF bandwidth (25MHz) and temperature compensated RSSI and limiters permitting higher performance application compared with the SA604. The SA614A is available in a 16-lead dual-in-line plastic and 16-lead SO (surface-mounted miniature) package.
FEA TURES
Low power consumption: 3.3mA typical
Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 90dB
Two audio outputs - muted and unmuted
Low external component count; suitable for crystal/ceramic filters
Excellent sensitivity: 1.5µV across input pins (0.22µV into 50
matching network) for 12dB SINAD (Signal to Noise and Distortion ratio) at 455kHz
SA614A meets cellular radio specifications
PIN CONFIGURATION
D and N Packages
IF AMP DECOUPLING
1 2 3 4 5 6 7 8
9
10
11
12
13
14
16 15
GND
MUTE INPUT
RSSI OUTPUT
MUTE AUDIO OUTPUT
UNMUTE AUDIO OUTPUT
QUADRATURE INPUT
IF AMP INPUT IF AMP DECOUPLING IF AMP OUTPUT
GND LIMITER INPUT
LIMITER DECOUPLING LIMITER DECOUPLING LIMITER
V
CC
SR00323
Figure 1. Pin Configuration
APPLICATIONS
Cellular radio FM IF
High performance communications receivers
Intermediate frequency amplification and detection up to 25MHz
RF level meter
Spectrum analyzer
Instrumentation
FSK and ASK data receivers
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
16-Pin Plastic Dual In-Line Package (DIP) -40 to +85°C SA614AN SOT38-4 16-Pin Plastic Small Outline (SO) package (Surface-mount) -40 to +85°C SA614AD SOT109-1
Philips Semiconductors Product specification
SA614ALow power FM IF system
1997 Nov 07
3
BLOCK DIAGRAM
16 15 14 13 12 11 10 9
87654321
SIGNAL
VOLTAGE
IF AMP
LIMITER
REGULATOR
STRENGTH
GND
V
CC
GND
MUTE
QUAD
DET
LIMITER
SR00324
Figure 2. Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNITS
V
CC
Single supply voltage 9 V
T
STG
Storage temperature range -65 to +150
°C
T
A
Operating ambient temperature range SA614A -40 to +85
°C
θ
JA
Thermal impedance D package
N package
90 75
°C/W °C/W
DC ELECTRICAL CHARACTERISTICS
VCC = +6V, TA = 25°C; unless otherwise stated.
LIMITS
SYMBOL PARAMETER TEST CONDITIONS SA614A UNITS
MIN TYP MAX
V
CC
Power supply voltage range 4.5 8.0 V
I
CC
DC current drain 2.5 3.3 4.0 mA Mute switch input threshold (ON)
(OFF)
1.7
1.0
V V
Philips Semiconductors Product specification
SA614ALow power FM IF system
1997 Nov 07
4
AC ELECTRICAL CHARACTERISTICS
Typical reading at TA = 25°C; VCC = +6V , unless otherwise stated. IF frequency = 455kHz; IF level = -47dBm; FM modulation = 1kHz with +
8kHz peak deviation. Audio output with C-message weighted filter and de-emphasis capacitor. Test circuit Figure 3. The parameters listed below are tested using automatic test equipment to assure consistent electrical characterristics. 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 SA614A UNITS
MIN TYP MAX
Input limiting -3dB Test at Pin 16 -92 dBm/50 AM rejection 80% AM 1kHz 25 33 dB Recovered audio level 15nF de-emphasis 60 175 260 mV
RMS
Recovered audio level 150pF de-emphasis 530 mV
RMS
THD Total harmonic distortion -30 -42 dB
S/N Signal-to-noise ratio No modulation for noise 68 dB
RF level = -118dBm 0 160 800 mV
RSSI output
1
RF level = -68dBm 1.7 2.50 3.3 V
RF level = -18dBm 3.6 4.80 5.8 V RSSI range R4 = 100k (Pin 5) 80 dB RSSI accuracy R4 = 100k (Pin 5) +2.0 dB IF input impedance 1.4 1.6 k IF output impedance 0.85 1.0 k Limiter input impedance 1.4 1.6 k Unmuted audio output resistance 58 k Muted audio output resistance 58 k
NOTE:
1. SA614A data sheets refer to power at 50 input termination; about 21dB less power actually enters the internal 1.5k input. SA614A (50) SA614A (1.5k)/SA615 (1.5k)
-97dBm -118dBm
-47dBm -68dBm +3dBm -18dBm
The SA615 and SA614A are both derived from the same basic die. The SA615 performance plots are directly applicable to the SA614A.
Philips Semiconductors Product specification
SA614ALow power FM IF system
1997 Nov 07
5
IF INPUT
GND
RSSI AUDIO DATA
GND
GND
OFF
ON
V
CC
SIGNETICS
NE614 TEST CKT
M
U
T
E
100nF + 80 – 20% 63V K10000–25V Ceramic
455kHz Ceramic Filter Murata SFG455A3
100nF +
10% 50V
100nF +
10% 50V
455kHz (Ce = 180pF) TOKO RMC 2A6597H 51Ω +
1% 1/4W Metal Film
150pF +
2% 100V N1500 Ceramic
6.8µF +
20% 25V Tantalum
1nF +
10% 100V K2000-Y5P Ceramic
15nF +
10% 50V
100nF +
10% 50V
C1 C2 C3 C4
C5 C6 C7 C8
C9 C10 C11 C12
F1
F2
R1
100nF +10% 50V
100nF +
10% 50V
100nF +10% 50V
10pF +
2% 100V NPO Ceramic
R2
R3
R4
1500Ω +
1% 1/4W Metal Film
1500Ω +
5% 1/8W Carbon Composition
100kΩ +
1% 1/4W Metal Film
16 15 14 13 12 11 10 9
87654321
NE614A TEST CIRCUIT
SA614A
INPUT
Q = 20 LOADED
MUTE INPUT
RSSI
OUTPUT
AUDIO
OUTPUT
DATA
OUTPUT
C
5
C
3
C
6
S
1
C
10
C
8
F
2
C
12
C
9
F
1
C
7
C
11
R
1
R
2
R
3
C
4
C
1
C
2
R
4
IF INPUT
GND
RSSI AUDIO DATA
GND
GND
OFF
ON
V
CC
SIGNETICS
NE614 TEST CKT
M
U
T
E
SR00325
Figure 3. SA614A Test Circuit
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