OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

NJM2593V-TE1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
NJM2593
Ver.2014-12-22
-
4
-
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.
Test Circuit 1 (except for Gmix)
Test Circuit 2 (for Gmix)
450
kHz
3300p
68k
68k
0.01u
1000p
1000p
20
19
18
17
16
15
14
13
12
11
BUFFER
OSC
MIXER
RSSI COMP
FILTER AMP
QUAD
DET
FSK COMP
CHARGE
1 2 3 4 5 6 7 8 9
10
FSK
OUT
CARRIER
SENSE
RSSI
OUT
V
+
68k
V
+
0.1u
51
0.1u
10u 10u
CD
560p
V
+
IF AMP
RSSI
100k100k
A
B
IF FILTER
IF SW
1000p
Hi
Lo
CHARGE
SWITCH
-
+
+
-
+
-
+
-
AF
OUT
SENSE
LEVEL
51
1000p
51
IF IN
LO IN
RF IN
21.7MHz
2
1.25MHz
10u
R1
C1
OPEN
450
kHz
3300p
68k
68k
0.01u
1000p
1000p
20
19
18
17
16
15
14
13
12
11
BUFFER
OSC
MIXER
RSSI COMP
FILTER AMP
QUAD
DET
FSK COMP
CHARGE
1 2 3 4 5 6 7 8 9
10
FSK
OUT
CARRIER
SENSE
RSSI
OUT
V
+
68k
V
+
0.1u
51
0.1u
10u 10u
CD
560p
V
+
IF AMP
RSSI
100k100k
A
B
IF FILTER
IF SW
1000p
Hi
Lo
CHARGE
SWITCH
-
+
+
-
+
-
+
-
AF
OUT
SENSE
LEVEL
51
1000p
51
IF IN
LO IN
RF IN
21.7MHz
2
1.25MHz
10u
R1
C1
0.1u
1
.8k
MIX OUT
NJM2593
Ver.2014-12-22
-
5
-
External components
C D : Ceramic discriminator, CDBCB450KCAY70-R0 (Murata Manufacturing Co., Ltd, Japan)
IF FILTER : Ceramic filter, CFWCA450KGFA-R0 (Murata Manufacturing Co., Ltd., Japan)
Measurement condition
“Condition1” is the condition for the case of IF input :
IF SW : in the A position.
IF IN input signal : input frequency(fif) = 450kHz, input level(VinIF)= 60dBuVEMF,
modulation frequency(fmod)=600Hz, deviation fdev=±2kHz
“Condition 2” is the condition for the case of Mixer Input :
IF SW : in the B position
MIX IN input signal: input frequency(fmix)=21.7MHz, input level(VinMIX)=60dBuVEMF,
modulation frequency(fmod)=600Hz, deviation fdev=±2kHz
OSC(E)input signal: input frequency(fosc)=21.25MHz, input level(VinOSC)=105dBuVEMF
CERAMIC DISCRIMINATOR (especially designed for NJM2592)
To optimize some important performance, the following ceramic discriminator CD is available. For more information
on this CD and 450kHz CD, please contact the CD supplier.
CDBKB450KCAY75-R0 (Murata Manufacturing Co., Ltd., Japan)
NJM2593
Ver.2014-12-22
-
6
-
TERMINAL FUNCTION (Ta=25°C, V
+
=2.0V)
Pin No.
SYMBOL EQUIVARENT CIRCUIT VOLTAGE
FUNCTION
1 OSC (B)
1.98V
Base / Emitter Terminal
Colpitts - type oscillator is formed
with an external oscillator element
of crystal unit or SAW resonator.
Output of an external oscillator
circuit can also input to pin1 or
pin2.
2 OSC (E) 1.28V
3 MIX OUT
1.18V
Mixer Output
An external 455kHz ceramic filter is
connected. The typical output
impedance is 2kΩ.
4 V+ - -
Supply Voltage
5 IF IN
1.96V
IF Limiter Amplifier Input
This is an input to the IF amplifier
after passing through 450kHz
ceramic filter. The typical input
impedance is 1.8kΩ.
6 DEC 1.96V
IF Decoupling
An external decoupling capacitor
is connected to enhance stability.
7
FSK VREF1
0.46V
FSK Reference Input
This pin is an input of reference
voltage for FSK comparator. An
external capacitor is connected to
create an average DC level of FM
demodulated signal. The choice of
this capacitor is dependent on the
speed of data signal.
A quick charge/discharge circuit
offers the voltage of pin 7 comes
the same voltage of pin 11 quickly.
1
V+
2
20k
80u
V+
3
100k
20p
100u
1.1k
V+
5
6
50k
900
900
V+
7
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:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet