NJW1340 New Japan Radio Co.,Ltd, NJW1340 Datasheet

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NJW1340

Manufacturer Part Number
NJW1340
Description
Njw1340 Video Switch For Dvd Recorder
Manufacturer
New Japan Radio Co.,Ltd
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
NJW1340V
Manufacturer:
JRC
Quantity:
20 000
the composite signal and Y/C signal.
detection circuit, which are operating constantly. Therefore, It can detect
a signal at the state of power save mode.
GENERAL DESCRIPTION
The NJW1340 is a video switch for DVD recorders corresponding to
It contains synchronous separation circuit and synchronous signal
FEATURES
BLOCK DIAGRAM
Operating Voltage
I
5-input 1-output video switch
3-input 1-output 2-circuit video switch
6th order Low Pass Filter
Internal synchronous separation circuit
Internal synchronous signal detection circuit
Power Save Circuit
Bi-CMOS Technology
Package Outline
2
C BUS Interface
Power Save
CVBS IN 1
CVBS IN 2
CVBS IN 3
CVBS IN 4
CVBS IN 5
DET SW
VCC 1
VCC 2
C IN 1
C IN 2
C IN 3
Y IN 1
Y IN 2
Y IN 3
VIDEO SWITCH FOR DVD RECORDER
GND
GND
GND
GND
GND
GND
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
4.5 to 5.5V
SSOP32
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
BIAS
BIAS
BIAS
ADDRESS SDA
28
CLAMP
I
2
C BUS
27
25
SCL
24
26
CLAMP
Sync
Sepa
LPF
LPF
23
PACKAGE OUTLINE
Detect
Sync
22
NJW1340V
31
30
29
32
OUT 2
GND
OUT 1
DET OUT
NJW1340
- 1 -
Ver.6

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NJW1340 Summary of contents

Page 1

... VIDEO SWITCH FOR DVD RECORDER GENERAL DESCRIPTION The NJW1340 is a video switch for DVD recorders corresponding to the composite signal and Y/C signal. It contains synchronous separation circuit and synchronous signal detection circuit, which are operating constantly. Therefore, It can detect a signal at the state of power save mode. ...

Page 2

... NJW1340 ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range (Note1 board of EIA/JEDEC specification. (76.2 × 114.3 × 1.6mm Two layers, FR-4) RECOMMENDED OPEARATING CONDITION(Ta=25°C) PARAMETER SYMBOL Operating Voltage Vopr ELECTRICAL CHARACTERISTICS (V PARAMETER SYMBOL Operating Current ...

Page 3

... Video switch block Power Save OFF (Active) L Video switch block Power Save ON (Mute) OPEN Video switch block Power Save ON (Mute) DET 1Select L CVBS IN 1 Select OPEN CVBS IN 1 Select Mode Mode NJW1340 5V (Note2) V LOCKH V CAPH V CAPL V LOCKL 0V Capture Range Lock Range - 3 - ...

Page 4

... NJW1340 2 TIMING ON THE I C BUS (SDA,SCL) SDA SCL t HD:STA t t LOW HD:DAT S CHARACTERISTICS OF I/O STAGES FOR BUS Load Conditions STANDARD MODE: Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND) PARAMETER Low Level Input Voltage High Level Input Voltage ...

Page 5

... HD:DAT Please hold the Data Hold Time (t The SDA block in the NJW1340 does not hold data. Add external data-delay-circuit of the SDA terminal, in case of not providing a hold time of at least 300nsec for the SDA in the master device. The time-consists of the data-delay-circuit of the SDA terminal are as follows. ...

Page 6

... NJW1340 BUS FORMAT MSB LSB Slave Address S 1bit 8bit S: Starting Term A: Acknowledge Bit P: Ending Term ♦SLAVE ADDRESS R/W: Set the Write Mode or Read Mode. ADR : Set the Slave Address by “ADR” terminal. Slave Address MSB R Write Mode, ADR = 0 ...

Page 7

... CVBSIN3 the synchronous detection 19 CVBSIN4 at the power saving mode. 21 CVBSIN5 Power Save control POWER 4 SAVE Signal detection control, Y IN1 or CVBS IN1 16 DETSW FUNCTION INSIDE EQUIVALENT CIRCUIT NJW1340 VOLTAGE 20kΩ 2.8V 200Ω 200Ω 2.5V 16kΩ 34kΩ 8kΩ 40kΩ ...

Page 8

... NJW1340 No. SYMBOL Capacitor connection for smoothing mono multi. 22 MMINTEG Capacitor and resistance connection for mono multi time constant. The accuracy of external resistance recommends within ±5%. 23 MMTC Capacitor connection for CLAMP 24 CLAMP Capacitor connection for CLAMP 25 CLAMP - 8 - FUNCTION INSIDE EQUIVALENT CIRCUIT VOLTAGE 10kΩ ...

Page 9

... No. SYMBOL clock 26 SCL data 27 SDA Slave address setting 28 ADDRESS Composite video signal, Y signal output Chroma signal output 29 OUT1 31 OUT2 FUNCTION INSIDE EQUIVALENT CIRCUIT NJW1340 VOLTAGE 4kΩ 4kΩ 66Ω 56Ω 0.9V 2. ...

Page 10

... NJW1340 No. SYMBOL Detection signal output. The synchronous detection result output at the power saving mode. 29 DETOUT GND GND Vcc VCC1 20 VCC2 - 10 - FUNCTION INSIDE EQUIVALENT CIRCUIT VOLTAGE 100KΩ ...

Page 11

... ADDRESS SDA SCL CLAMP 1µ 1µF 1µF 75Ω 75Ω 75Ω 75Ω CIN3 GND YIN1 YIN2 NJW1340 MMTC MMINTEG CVBSIN5 VCC2 CVBSIN4 3.3µF 1nF 50kΩ + 75Ω 75Ω 1µF 1µ 1µF 1µF 75Ω ...

Page 12

... NJW1340 TYPICAL CHARACTERISTICS Voltage Gain vs Frequency 0 -10 -20 -30 -40 - Freq [MHz [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages ...

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