NJW1320
WIDE BAND VIDEO SWITCH WITH I
2
C BUS
GENERAL DESCRIPTION
The
NJW1320
is a Wide Band Video Switch with I
2
C BUS.The
NJW1320
includes switch of 4-input 3-output and 6dB amplifier. It is
suitable for Y, Pb, and Pr signal because frequency range is
50MHz.The
NJW1320
includes external logic control terminals and
external logic discernment terminals. The
NJW1320
is suitable for
PTV, DTV, PDP and other high quality AV systems.
FEATURES
Operating Voltage
9.0V
4-input 3-output 3-Circuits (Y, Pb, and Pr signal)
Wide frequency range
0dB at 50MHz typ.
Internal 6dB amplifier (Selectable Bypass or 6dB)
External logic discernment terminal
External logic control terminal
Selectable slave address
Power Save Circuit
I
2
C BUS control
Bi-CMOS Technology
Package Outline
QFP48
BLOCK DIAGRAM
Y IN1
Y IN2
Y IN3
Y IN4
6dB
Y OUT2
6dB
Y OUT1
PACKAGE OUTLINE
NJW1320FP1
6dB
Y OUT3
Pb IN1
Pb IN2
Pb IN3
Pb IN4
6dB
Pb OUT2
6dB
Pb OUT1
6dB
Pb OUT3
Pr IN1
Pr IN2
Pr IN3
Pr IN4
6dB
Pr OUT2
6dB
Pr OUT1
6dB
Pr OUT3
PORT 0
PORT 1
PORT 2
PORT 3
VCC
GND
VREF
BIAS
I
2
C BUS
ADDRESS
SDA
SCL
AUX 0
AUX 1
AUX 2
AUX 3
DGND
Ver.9
-1-
NJW1320
PIN CONFIGURATION
Y IN4
GND
Pb IN4
GND
Pr IN4
V+
Y IN3
GND
Pb IN3
GND
39
GND
Y OUT1
Pb OUT1
Pr OUT1
AUX3
Y OUT2
Pb OUT2
Pr OUT2
AUX2
Y OUT3
Pb OUT3
Pr OUT3
AUX1
AUX0
38
25
24
ADR
SDA
SCL
DGND
GND
VREF
PORT0
PORT1
PORT2
PORT3
48
1
14
15
1. Pr IN3
2. GND
3. Y IN2
4. GND
5. Pb IN2
6. GND
7. Pr IN2
8. GND
9. Y IN1
10. GND
11. Pb IN1
12. GND
13. Pr IN1
14. GND
Pr IN3
GND
Y IN2
GND
Pb IN2
GND
Pr IN2
GND
Y IN1
GND
Pb IN1
GND
Pr IN1
GND
15. PORT3
16. PORT2
17. PORT1
18. PORT0
19. VREF
20. GND
21. DGND
22. SCL
23. SDA
24. ADR
25. AUX0
26. AUX1
27. Pr OUT3
28. Pb OUT3
29. Y OUT3
30. AUX2
31. Pr OUT2
32. Pb OUT2
33. Y OUT2
34. AUX3
35. Pr OUT1
36. Pb OUT1
37. Y OUT1
38. GND
39. Y IN4
40. GND
41. Pb IN4
42. GND
43. Pr IN4
44. V+
45. Y IN3
46. GND
47. Pb IN3
48. GND
-2-
NJW1320
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
+
Supply Voltage
V
12.0
V
Power Dissipation
P
D
1875(note)
mW
Topr
-25 to +75
Operating Temperature Range
°C
Tstg
-40 to +150
Storage Temperature Range
°C
(Note) At on a board of EIA/JEDEC specification. (76.2
×
114.3
×
1.6mm Two layers, FR-4)
ELECTRICAL CHARACTERISTICS
(V
+
=9.0V, R
L
=10KΩ, Ta=25°C)
VIDEO
PARAMETER
Operating Voltage
Operating Current
Maximum Output Voltage
Voltage Gain 1
Voltage Gain 2
Frequency Characteristic 1
Frequency Characteristic 2
Cross talk 1
Cross talk 2
Differential Gain
Differential Phase
S/N
PORT, AUX
PARAMETER
PORT Input Voltage H
PORT Input Voltage M
PORY Input Voltage L
AUX Output Voltage H
AUX Output Voltage M
AUX Output Voltage L
A D R I n p u t Vo l ta g e H
A D R I n p u t Vo l t a g e L
SYMBOL
V
PTH
V
PTM
V
PTL
V
AUXH
V
AUXM
V
AUXL
V
ADRH
V
ADRL
TEST CONDITION
MIN.
3.5
1.4
0
3.5
1.4
0
3.5
0
TYP.
-
-
-
-
-
-
-
-
MAX.
5.5
2.4
0.8
5.5
2.4
0.8
5.0
1.0
UNIT
V
V
V
V
V
V
V
V
SYMBOL
V
+
I
cc
Vom
Gv1
Gv2
Gf1
Gf2
CTB1
CTB2
DG
DP
SNv
TEST CONDITION
MIN.
8.0
-
No signal
f=100kHz, THD=1%
2.0
Vin=100kHz, 1.0Vp-p Sin signal
6.0
6dB Mode
Vin=100kHz, 1.0Vp-p Sin signal
-0.5
Bypass Mode
Vin=50MHz / 100kHz, 1.0Vp-p Sin signal
-
6dB Mode
Vin=50MHz / 100kHz, 1.0Vp-p Sin signal
-
Bypass Mode
Vin=4.43MHz,1.0Vp-p Sin signal
-
Vin=30MHz,1.0Vp-p Sin signal
Vin=1.0Vp-p 10step Video signal
Vin=1.0Vp-p 10step Video signal
Vin=1.0Vp-p,100% White Video Signal
-
-
-
-
TYP.
9.0
70
2.5
6.4
0.0
0
0
-60
-40
0.3
0.3
65
MAX.
10.0
100
-
6.8
0.5
-
-
-50
-
-
-
-
UNIT
V
mA
Vp-p
dB
dB
dB
dB
dB
dB
%
deg
dB
-3-
NJW1320
TIMING ON THE I
2
C BUS (SDA,SCL)
SDA
t
f
t
r
t
SU:DAT
t
f
t
HD:STA
t
SP
t
r
t
BUF
SCL
t
HD:STA
t
SU:STA
t
LOW
t
HD:DAT
t
HIGH
t
SU:STO
S
Sr
P
S
I
2
C BUS Load Conditions
STANDARD MODE: Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
CHARACTERISTICS OF I/O STAGES FOR I
2
C BUS (SDA,SCL)
PARAMETER
Low Level Input Voltage
High Level Input Voltage
Low level output voltage (3mA at SDA pin)
Input current each I/O pin with an input voltage
between 0.1V
DD
and 0.9V
DDmax
SYMBOL
V
IL
V
IH
V
OL
I
i
Standard mode
MIN.
0.0
2.7
0
-10
TYP.
-
-
-
-
MAX.
1.5
5.5
0.4
10
UNIT
V
V
V
µA
-4-
NJW1320
CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I
2
C-BUS DEVICES
Standard mode
MIN.
SCL clock frequency
Hold time (repeated) START condition.
Low period of the SCL clock
High period of the SCL clock
Set-up time for a repeated START condition
Data hold time
NOTE)
Data set-up time
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
Set-up time for STOP condition
Bus free time between a STOP and START condition
Capacitive load for each bus line
Noise margin at the Low level
Noise margin at the High level
f
SCL
t
HD:STA
t
LOW
t
HIGH
t
SU:STA
t
HD:DAT
t
SU:DAT
t
r
t
f
t
SU:STO
t
BUF
C
b
V
nL
-
4.0
4.7
4.0
4.7
0
250
-
-
4.0
4.7
-
0.5
1
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MAX.
100
-
-
-
-
-
-
1000
300
-
-
400
-
-
PARAMETER
SYMBOL
UNIT
kHz
µs
µs
µs
µs
µs
ns
ns
ns
µs
µs
pF
V
V
nH
V
C
b
; total capacitance of one bus line in pF.
NOTE). Data hold time : t
HD:DAT
Please hold the Data Hold Time (t
HD:DAT
) to 300ns or more to avoid status of unstable at SCL falling edge.
The SDA block in the NJW1320 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.
(a) Low level
(b) High level
High level: T
LH
≈
R
P
*C
D
Low level: T
HL
≈
R
D
*C
D
In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward voltage
(Vf) as much as possible.
V
DD
R
P
R
P
SCL
MASTER
SBD
SDA
NJW1320
R
D
C
D
-5-
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