NJM2592V-TE1 NJR, NJM2592V-TE1 Datasheet

IC FM-IF DEMOD 455KHZ 20-SSOP

NJM2592V-TE1

Manufacturer Part Number
NJM2592V-TE1
Description
IC FM-IF DEMOD 455KHZ 20-SSOP
Manufacturer
NJR
Datasheet

Specifications of NJM2592V-TE1

Function
Demodulator
Rf Frequency
455kHz
Gain
24dB
Current - Supply
2.2mA
Voltage - Supply
1.8 V ~ 9 V
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Noise Figure
-
P1db
-
Lo Frequency
-
Other names
NJM2592V-TE1
NJM2592V-TE1TR
Ver.2004-08-25
GENERAL DESCRIPTION
The NJM2592 is a wide-operating voltage, low-current
FM IF demodulator IC with 455kHz(standard) IF frequency.
It includes an oscillator, mixer, limiting amplifier, quadrature
detector, active filter, and FSK comparator.
The NJM2592 also has a RSSI circuit and RSSI comparator
for carrier sense.
FEATURES
BLOCK DIAGRAM
Wide Operating Voltage
Low Operating Current
Maximum Mixer Input Signal
Mixer Input Resistance
IF Frequency
Conventional Quadrature Detector
RSSI Comparator with Open-Collector Output
Quick Charge/Discharge Circuit for FSK Reference Voltage
Bipolar Technology
Package Outline
Frequency
Level
External Phase-shifting Capacitor
External Discriminator or LC Resonant Circuit
470MHz INPUT MIXER AND 455kHz FM IF DEMODULATOR IC
OSC
MIX
(B)
20
IN
1
OSC
BUFFER
MIXER
GND
OSC
(E)
19
2
SENSE
LEVEL
OUT
MIX
18
3
SSOP20
470MHz (reference value)
455kHz (standard)
1.8V to 9.0V
0dBm
2.2mA type. at V
50Ω
RSSI
OUT
17
V+
4
RSSI COMP
+
-
CARRIER
SENSE
16
IN
5
IF
RSSI
+
=2.0V, external local oscillator input
FSK COMP
DEC
OUT
FSK
15
6
IF AMP
+
-
+
-
VREF1
CHARGE
FSK
SW
14
7
VREF2
CHARGE
OUT
FSK
LPF
FILTER AMP
13
8
PACKAGE OUTLINE
+
-
OUT
LPF
12
IN
IF
9
NJM2592V
QUAD
OUT
AF
11
10
IN
NJM2592
QUAD
DET
- 1 -

Related parts for NJM2592V-TE1

NJM2592V-TE1 Summary of contents

Page 1

... SSOP20 CARRIER SENSE RSSI FSK LEVEL OUT SENSE OUT FSK COMP RSSI COMP RSSI + - IF AMP MIX V+ IF DEC OUT IN NJM2592 PACKAGE OUTLINE NJM2592V CHARGE LPF AF LPF SW OUT OUT FILTER AMP CHARGE QUAD DET QUAD FSK FSK OUT IN VREF2 VREF1 - 1 - ...

Page 2

NJM2592 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Mixer Input Signal Level Operating Temperature Storage Temperature RECOMMENDED OPERATING CONDITION PARAMETER Supply Voltage ELECTRICAL CHARACTERISTICS + ( Ta=25°C, V =2.0V, fmix=430MHz, flo=429.545MHz, fif=455kHz, fmod=600Hz, fdev=±4kHz, unless otherwise noted) PARAMETER Current ...

Page 3

PARAMETER Demodulated Output Level Duty Ratio of Wave Shaped Output Quick Charge/Discharge Current High Level Leak Current of CARRIER SENSE Terminal Low Level Voltage of CARRIER SENSE Terminal Bias Current of SENSE LEVEL Terminal High Level Leak Current of FSK ...

Page 4

NJM2592 TEST CIRCUIT This test circuit allows the measurement of all parameters described in “ELECTRICAL CHARACTERISTICS”. This test circuit includes some electrical switches that should be in the suitable position for the measurement of each parameter. Circuit diagram 1000p 430MHz ...

Page 5

TERMINAL FUNCTION ( Pin No. SYMBOL 1 OSC (B) 2 OSC (E) 3 MIX OUT DEC 7 FSK VREF1 Ver.2004-08- Ta=25°C, V =2.0V EQUIVARENT CIRCUIT V+ 1 20p 2 V+ 1.4k 3 ...

Page 6

NJM2592 Pin No. SYMBOL 8 FSK VREF2 9 IF OUT 10 QUAD OUT - 6 - EQUIVARENT CIRCUIT V+ 8 40k V+ 9 40uA V+ 400 400 40uA VOLTAGE FUNCTION FSK Reference Voltage ...

Page 7

Pin No. SYMBOL 12 LPF IN 13 LPF OUT CHARGE FSK OUT CARRIER 16 SENSE Ver.2004-08-25 EQUIVARENT CIRCUIT 300k NJM2592 VOLTAGE FUNCTION Low Pass Filter Input An external ...

Page 8

NJM2592 Pin No. SYMBOL 17 RSSI OUT SENSE 18 LEVEL 19 GND 20 MIX IN Note : 1. ESD protection diodes exist between each of the following pins and V Pin 1,2,3,5,6,7,8,9,10,11,12,13,17,18,20 2. ESD protection diodes also exist between each ...

Page 9

APPLICATION CIRCUIT External Local Oscillator Signal Input LNA BPF Input Imp.50ohm Local Oscillator with External Crystal and LC Resonant Elements Input Imp.50ohm + V Overtone Crystal Unit Ver.2004-08-25 CARRIER RSSI FSK SENSE OUT OUT + + ...

Page 10

NJM2592 EVALUATION PC BOARD The evaluation board is useful for your design and to have more understanding of the usage and performance of this device. This circuit is the same as TEST CIRCUIT. Note that this board is not prepared ...

Page 11

Circuit Side View Position of C2 for the case of IF-input Ground Side View Note: External Components 1. C1, C3, C9,C10=1000pF C11=0.47uF C12,C13=10uF R1=3.3kΩ R2,R3,R4=68kΩ CF=CFWLB455KEFA004-B0 Ver.2004-08- Local IC1 CF NJM2592 R7 ...

Page 12

NJM2592 TYPICAL CHARACTERISTICS Current Consumption versus Supply Voltage No input signal 3.0 2.5 2.0 1.5 1.0 0.5 0 Supply Voltage V+(V) Demodulated Output versus Supply Voltage Condition 1(IF input) 120 100 ...

Page 13

Mixer Conversion Gain versus Frequency Measured at Pin3, terminated with 2kΩ 100 Mixer Input Frequncy fmix(MHz) Mixer Conversion Gain versus OSC Input Measured at Pin3, terminated with 2kΩ ...

Page 14

NJM2592 S+N,N,AMR versus Mixer Input Condition 2(Mixer input), AM=30 -10 -20 -30 -40 -50 -60 -70 -80 - Mixer Input Level VinMIX(dBuVEMF) RSSI Output versus Mixer Input Condition 2(Mixer input) 2.4 2.0 1.6 1.2 0.8 ...

Page 15

Current Consumption versus Temperature No input signal 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 -40 - Ambient Temperature Ta(°C) Demodulated Output versus Temperature Condition 1(IF input) 120 110 100 ...

Page 16

NJM2592 RSSI Output versus Temperature-Mixer- Condition 2(Mixer input) 2.4 2.0 1.6 1.2 0.8 0.4 0.0 -40 - Ambient Temperature Ta(°C) Quick Charge/Discharge Current versus Temperature Condition 1(IF input),LPF OUT=0.45V -20 -30 -40 -50 -60 -70 -80 -90 -100 ...

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