NJM2507
VIDEO DIFFERENTIAL INPUT RECEIVER
s
GENERAL DESCRIPTION
The NJM2507 is video differential input receiver. The differential
signal is converted to the single-end signal. The single-end signal can
be transmitted by the differential signal by the connection with
NJM2504.
And, it is converted to the single-end signal by the NJM2507.
The common mode noise can be removed because of the differential
motion transmission, and it is the best for the transmission of car AV
system.
s
PACKAGE OUTLINE
NJM2507RB1
s
FEATURES
q
Operating Voltage
4.5 to 9.5V
q
Input: Differential signal, Output: Single-end signal
q
Internal 6dB Amplifier *Differential input mode
q
Internal 75ohm Driver
q
Internal SAG Correction Circuit
q
Bipolar Technology
q
Package Outline
TVSP8
s
PIN CONNECTION
1: V+
2: Power Save
3: Vinp
4: Vinn
5: Vref
6: GND
7: Vsag
8: Vout
1
2
3
4
8
7
6
5
s
BLOCK DIAGRAM
Vcc
PowerSave
Vref
Bias
Vinp
Vinn
Vout
Vsag
GND
Ver.5
-1-
NJM2507
s
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
+
V
P
D
Topr
Tstg
RATINGS
10
580(Note1)
-40 to +85(Note2)
-40 to +150
UNIT
V
mW
°C
°C
(Note 1) At on a board of EIA/JEDEC specification. (114.3 x 76.2 x 1.6mm 2 layers, FR-4)
(Note 2) It has high operating temperature range product.(-40 to +105°C)
s
RECCOMENDED OPERATING CONDITIONS
(Ta=25°C)
PARAMETER
Operating voltage
SYMBOL
Vopr
+
TEST CONDITION
MIN.
4.5
TYP.
-
MAX.
9.0
UNIT
V
s
ELECTRICAL CHRACTERISTCS
(V =5V, RL=150ohm,Ta=25°C)
PARAMETER
Supply Current
Supply Current
at Power Save Mode
Maximum Output Level
Voltage Gain
Frequency Characteristics
Common Mode
Rejection Ratio
Differential Gain
Differential Phase
SW Voltage High Level
SW Voltage Low Level
SW Sink Current High Level
SW Sink Current Low Level
SYMBOL
I
CC
Isave
Vom
Gv
Gf
CMR
DG
DP
VthH
VthL
IthH
IthL
No signal
Power save mode
Vin=100kHz,sin-signal, THD=1%,
Vin=1MHz, 1.0Vp-p sin-signal
Vin=10MHz/1MHz, 1.0Vpp sin-signal
Vin=20kHz, 1.0Vpp,sin-signal
Vin=1.0Vp-p 10step video signal
Vin=1.0Vp-p 10step video signal
TEST CONDITION
MIN.
-
-
2.2
-0.3
-1.0
-
-
-
2.2
0
-
-
TYP.
10
0.3
2.4
0.2
0
-50
0.5
0.5
-
-
-
-
MAX.
12
0.5
-
0.7
1.0
-
-
-
+
V
1.0
120
8.0
UNIT
mA
mA
Vp-p
dB
dB
dB
%
deg
V
V
µA
µA
V=5V
V=0.3V
s
CONTROL CHRACTERISTC
PARAMETER
STATUS
H
L
Power Save
OPEN
Power save: OFF
Power save: ON
Power save: ON
MODE
Active mode
Non-Active mode (Mute)
Non-Active mode (Mute)
Ver.5
-2-
NJM2507
s
TEST CIRCUIT
1
+
VCC
VOUT
8
+
47µF
0.1µF
100µF 75Ω
75Ω
2
PS
VSAG
7
+
22µF
75Ω
10µF
+
3
VINP
GND
6
75Ω
10µF
+
4
VINN
VREF
5
+
10µF
s
APPLICATION CIRCUIT
47uF
0.1uF
VCC
+
PS
VOUTP
47uF
+
0.1uF
+
10uF
VCC
VREF
PS
NJM2504
+
6dB
-
+
NJM2507
100uF
75Ω
IN
VIN
10uF
+
+
VINP
10uF
+
BIAS
22uF
BIAS
VSAGP
VOUTN
+
10uF
+
+
6dB
-
VOUT
+
OUT
75Ω
100uF
+
50or75Ω
VINN
100uF
75Ω
75Ω 75Ω
22uF
-
6dB
+
GND
+
VSAG
22uF
75Ω
VSAGN
GND
Ver.5
-3-
NJM2507
s
APPLICATION CIRCUIT
When the receiver is single end input, the NJM2507 becomes GND noise isolator on the transmitter.
Connect GND of the receiver to Vref terminal of the NJM2507.
(Note1)
The NJM2507 outputs signal that has canceled the GND noise, because GND reference is the receiver.
(Note2)
transmitter (Head unit, DVD player, etc)
Vcc
Receiver (Monitor,Head unit, etc)
NJM2507
Vref
BIAS
*note1
Vinp
Vinn
BIAS
Vout
*note2
GND
Vsag
GND of chassis
GND of Receiver
Ver.5
-4-
NJM2507
s
EQUIVALENT CIRCUIT(Vcc=5V)
PIN No.
1
PIN NAME
Vcc
EQUIVALENT CIRCUIT
DC VOLTAGE
-
58k
Ω
2
Power Save
48k
Ω
-
GND
VCC
270
Ω
3
4
VINP
VINN
20k
Ω
2.5V
GND
VCC
40k
Ω
270
Ω
5
VREF
40k
Ω
2.5V
GND
6
V+
VCC
5V
7
VSAG
10.5k
Ω
750
Ω
2.5V
VCC
750
Ω
8
VOUT
2.5V
GND
Ver.5
-5-
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
