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NJM2593V-TE1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
NJM2593
-
1
-
Ver.
-
12
-
22
50MHz INPUT MIXER AND 450kHz FM IF DEMODULATOR IC
GENERAL DESCRIPTION PACKAGE OUTLINE
The NJM2593 is an FM IF demodulator IC with 450kHz(standard)
IF frequency, which operates from 1.8V to 9V supply, low-current.
It includes an oscillator, mixer, limiting amplifier, quadrature detector,
active filter, and FSK comparator.
The NJM2593 also has a RSSI circuit and RSSI comparator
for carrier sense.
NJM2593V
FEATURES
Wide Operating Voltage 1.8V to 9.0V
Low Operating Current 1.2mA type. at V
+
=2.0V, external local oscillator input
Maximum Mixer Input Signal
Frequency 50MHz (reference value)
Mixer Input Resistance 4.5kΩ (reference value)
IF Frequency 450kHz (standard)
Conventional Quadrature Detector
External Phase-shifting Capacitor
External Discriminator or LC Resonant Circuit
RSSI Comparator with Open-Collector Output
Quick Charge/Discharge Circuit for FSK Reference Voltage
Bipolar Technology
Package Outline SSOP20
BLOCK DIAGRAM
20
19
18
17
16
15 14
13
12
11
BUFFER
OSC
MIXER
RSSI COMP
IF AMP
FILTER AMP
QUAD
DET
FSK COMP
CHARGE
1 2 3 4 5 6 7 8 9
10
OSC
(B)
OSC
(E)
MIX
OUT
V+
IF
IN
DEC IF
OUT
QUAD
IN
AF
OUT
LPF
OUT
CHARGE
SW
FSK
OUT
FSK
VREF2
CARRIER
SENSE
RSSI
OUT
SENSE
LEVEL
GND
MIX
IN
LPF
IN
RSSI
FSK
VREF1
+
-
+
-
+
-
-
+
NJM2593
Ver.2014-12-22
-
2
-
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYMBOL
RATINGS UNIT
Supply Voltage V
+
10.0 V
Power Dissipation P d 300 mW
Operating Temperature T o p r - 40 to +85 °C
Storage Temperature T s t g - 40 to +125 °C
RECOMMENDED OPERATING CONDITION (Ta=25°C)
PARAMETER SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply Voltage V
+
1.8 2.0 9.0 V
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V
+
=2.0V, fmix=21.7MHz, flo=21.25MHz, fif=450kHz, fmod=600Hz, fdev=±2kHz, unless otherwise noted)
PARAMETER SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Current Consumption I c c q No signal - 1.2 1.5 mA
Mixer Conversion Gain G m i x
VinMIX=60dBuVEMF,
Measured at Pin3, without IF
filter, with 1.8kΩ+0.1uF
17 20 23 dB
Mixer 3
rd Order Intercept IP3 - 95 - dBuV
Mixer Input Resistance R i n M - 4.5 - kΩ
Mixer Input Capacitance C i n M - 2.0 - pF
Mixer Output Resistance R o M - 1.8 - kΩ
Signal to Noise Ratio 1 S / N 1
Mixer input
VinMIX=60dBuVEMF
- 60 - dB
Signal to Noise Ratio 2 S / N 2
IF input
VinIF=60dBuVEMF
40 60 70 dB
Signal to Noise Ratio 3 S / N 3
IF input
VinIF=25dBuVEMF
20 30 40 dB
-3dB Limiting Sensitivity V i n ( l i m ) IF input - 22 - dBuVEMF
AM Rejection Ratio A M R
IF input, AM=30%
VinIF=60dBuVEMF
- 50 - dB
IF Amplifier Input Resistance R i n I F - 1.8 - kΩ
RSSI Output Voltage V r s s i
IF input
VinIF=40dBuVEMF
0.35 0.5 0.65 V
NJM2593
Ver.2014-12-22
-
3
-
PARAMETER SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Demodulated Output Level V o d
IF input
VinIF =60dBuVEMF
70 80 90 mVrms
Duty Ratio of Wave Shaped Output DR
IF Input
VinIF=60dBuVEMF
40 50 60 %
Quick Charge/Discharge Current Ich
FSK REF=GND
LPFOUT=0.4V
35 65 110 uA
High Level Leak Current of
CARRIER SENSE Terminal
IcryH V
CARRIER SENSE
=V
+
- 0.0 - uA
Low Level Voltage of
CARRIER SENSE Terminal
VcryL I
CARRIER SENSE
=100uA - 0.1 0.4 V
Bias Current of
SENSE LEVEL Terminal
I l e v e l V
CARRIER SENSE
=0.8V - 0.0 - uA
High Level Leak Current of
FSK OUT Terminal
I f s k H V
FSK OUT
=V
+
- 0.0 - uA
Low Level Voltage of
FSK OUT Terminal
V f s k L I
FSK OUT
=100uA - 0.1 0.4 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

NJM2593V-TE1

Mfr. #:
Buy NJM2593V-TE1
Manufacturer:
NJR (New Japan Radio)
Description:
Modulator / Demodulator 50MHz INPUT MIXER & 450kHz FM IF DEMOD
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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