PANASONIC AN5870K

ICs for TV
AN5870K
Wide bandwidth analog switch IC
■ Overview
■ Features
• 2-input 1-output circuit (DC switch type)
• Built-in 6 dB amplifier for RGB signal (1.5 dB for 75
Ω termination)
• Built-in sync. separation circuit (Supporting sync. on
green and power save)
• Higher speed horizontal / vertical sync. signal circuit
(tdelay = 20 ns)
0.5±0.1
Unit: mm
30
0.9±0.25
1
1.778
26.7±0.3
The AN5870K is a wide bandwidth analog switch IC
of 300 MHz operation. It is usable for RGB signal and
horizontal/vertical synchronizing signals, and it has a
built-in 75 Ω driver for video signal. In addition, it has
also realized a high speed operation by the adoption of
CMOS process for its sync. signal processing circuit. It is
usable in a broad range from a popular type monitor to a
high definition monitor.
15
16
8.6±0.3
4.7±0.25
+0.1
3° to 15°
10.16±0.25
0.35−0.0
1.0±0.25
3.3±0.25
5
SDIP030-P-0400
■ Applications
• Monitors
1
AN5870K
ICs for TV
■ Block Diagram
R-in1
GND (R)
1
30
2
29
VCC2 (12 V)
R-out
6 dB
R-in2
VCC1 (5 V)
3
28
4
27
VCC2
G-out
6 dB
G-in1
GND (G)
G-in2
VCC1 (5 V)
5
26
6
25
7
24
8
23
GND (R, G, B)
G sync.
GND (R, G, B)
B-out
6 dB
B-in1
GND (B)
B-in2
9
10
22
Sw select bias
Sync. sep
11
21
20
SW
Sync. in
H Pdet.
Hsync
detect sw
VCC1 (5 V)
H-in1
H-in2
V-in1
2
12
19
13
18
14
17
15
16
H-out
V-out
GND (HV, HSEP, SW)
V-in2
ICs for TV
AN5870K
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
1
R input 1
16
V input 2
2
GND (R)
17
GND (HV, HSEP, SW)
3
R input 2
18
V output
4
VCC1 5 V (G sync.)
19
H output
5
G input 1
20
H detect
6
GND (G)
21
Sync. input
7
G input 2
22
SW
8
VCC1 5 V (RGB)
23
B output
9
B input 1
24
GND (RGB)
10
GND (B)
25
G sync. output
11
B input 2
26
GND (RGB)
12
VCC1 5 V (HV, HSEP, SW)
27
G output
13
H input 1
28
VCC2 12 V (RGB)
14
H input 2
29
R output
15
V input 1
30
VCC2 12 V (RGB)
■ Absolute Maximum Ratings
Parameter
Supply voltage
Supply current
Power dissipation
Symbol
Rating
Unit
VCC1 (pin 4, pin 8, pin 12)
5.5
V
VCC2 (pin 28, pin 30)
12.9
ICC1 (pin 4, pin 8, pin 12)
22.5
ICC2 (pin 28, pin 30)
75.8
PD
1.143
W
Topr
−20 to +70
°C
Tstg
−55 to +150
°C
*2
Operating ambient temperature
Storage temperature
*1
*1
mA
Note) For the precautions related to surge and latch-up, refer to "■ Usage Notes".
*1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
*2: The power dissipation shown is for the independent IC package without a heat sink in free air at Ta = 70°C
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
Range
Unit
VCC1
4.5 to 5.25
V
VCC2
10.5 to 12.6
3
AN5870K
ICs for TV
■ Electrical Characteristics at Ta = 25°C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Power supply
Supply current (1)
ICC1
Current at V4, V8, V12 = 5 V
13.0
16.0
19.0
mA
Supply current (2)
ICC2
Current at V28, V30 = 12 V
46.0
60.0
70.0
mA
Input DC voltage 1
VI1
Pin 22: 0 V, pins 1, 5, 9: DC
2.6
2.9
3.2
V
Input DC voltage 2
VI2
Pin 22: 5 V, pins 3, 7, 11: DC
2.6
2.9
3.2
V
Output DC voltage 1
VO1
Pin 22: 0 V, pins 23, 27, 29: DC
5.7
6.2
6.7
V
Output DC voltage 2
VO2
Pin 22: 5 V, pins 23, 27, 29: DC
5.7
6.2
6.7
V
Output DC voltage 3
VO3
Pin 25: DC
1.9
2.3
2.7
V
Input impedance (1)
RI1
Pin 22: 0 V, pins 1, 5, 9: Measurement
85
100
115
kΩ
Input impedance (2)
RI2
Pin 22: 5 V, pins 3, 7, 11: Measurement
85
100
115
kΩ
Output impedance (1)
RO1
Pin 23, 27, 29: Measurement
60
70
80
Ω
Output impedance (2)
RO2
Pin 25: Measurement
50
70
90
Ω
Gain (1)
GV1
Pin 22: 0 V, pins 1, 5, 9: SG1 signal,
pins 23, 27, 29: Measurement
0.5
1.5
2.5
dB
− 0.4
0.0
0.4
dB
0.5
1.5
2.5
dB
Relative difference to GV2
− 0.4
0.0
0.4
dB
Signal processing system
Relative gain (1)
Gain (2)
Relative gain (2)
GV2
∆GV2
Relative difference to GV1
Pin 22: 5 V, pin 3, 7, 11: SG1 signal,
pins 23, 27, 29: Measurement
Gain (3)
GV3
Pin 22: 0 V or 5 V, pin 5 or 7: SG1 signal,
pins 23, 27, 29: Measurement
−2.0
− 0.5
0.5
dB
Frequency characteristics 1
(100 MHz)
fC1
Pin 22: 0 V, difference from GV1,
pins 1, 5, 9: SG4 signal,
pins 23, 27, 29: Measurement
−1.3
− 0.3
0.7
dB
Relative frequency
characteristics 1 (100 MHz)
∆fC1
Relative difference to fC1
− 0.5
0.0
0.5
dB
Pin 22: 5 V, difference from GV2,
pins 3, 7, 11: SG4 signal,
pins 23, 27, 29: Measurement
−1.3
− 0.3
0.7
dB
− 0.5
0.0
0.5
dB
Relative frequency
characteristics 2
(100 MHz)
4
∆GV1
fC2
Relative frequency
characteristics 2 (100 MHz)
∆fC2
Relative difference to fC2
Crosstalk between RGB 1
(10 MHz)
CTC1
Pin 22: 0 V, pin 1 or 5 or 9: SG2 signal,
pins 23, 27, 29: Measurement

−50
−45
dB
Crosstalk between RGB 2
(10 MHz)
CTC2
Pin 22: 5 V, pin 3 or 7 or 11: SG2 signal,
pins 23, 27, 29: Measurement

−50
−45
dB
Crosstalk between 2 inputs (1)
(10 MHz)
CTI1
Pin 22: 5 V, pin 1 or 5 or 9: SG2 signal,
pins 29, 27, 23: Measurement

−60
−50
dB
Crosstalk between 2 inputs (2)
(10 MHz)
CTI2
Pin 22: 0 V, pin 3 or 7 or 11: SG2 signal,
pins 29, 27, 23: Measurement

−60
−50
dB
ICs for TV
AN5870K
■ Electrical Characteristics at Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
High level output voltage (1)
VOH(H)
Pin 20: 2.5 V, pin 19: Measurement,
pin 13 or 14: 5 V, pin 22: 0 V or 5 V
4.5

5.0
V
High level output voltage (2)
VOH(V)
Pin 18: Measurement,
pin 15 or 16: 5 V, pin 22: 0 V or 5 V
4.5

5.0
V
Low level output voltage (1)
VOL(H)
Pin 20 2.5 V, pin 19: Measurement,
pin 13 or 14: 0 V, pin 22: 0 or 5 V
0.0

0.5
V
Low level output voltage (2)
VOL(V)
Pin 18: Measurement,
pin 15 or 16: 0 V, pin 22: 0 V or 5 V
0.0

0.5
V
Input threshold voltage (1)
VITH(H)
Pin 20: 2.5 V, pin 19: Measurement,
pin 13 or 14: 0 to 5 input, pin 22: 0 V or 5 V
1.2
1.5
1.8
V
Input threshold voltage (2)
VITH(V)
Pin 18: Measurement,
pin 15 or 16: 0 to 5 input, pin 22: 0 V or 5 V
1.2
1.5
1.8
V
HDET voltage
VO(DET)
Pin 22: 0 V, pin 13: SG6 signal,
pin 20: DC measurement
2.2
2.5
2.8
V
Pin 21: DC measurement
1.0
1.35
1.7
V
Pin 21: SG8 signal,
pin 19: Sync. level measurement


100
mV
VITH(SW)
Measurement when pin 15: DC 5 V,
pin 16: DC 0 V, pin 22: 0 V to 2.5 V
and pin 18: Becomes 0 V
1.2
1.7
2.2
V
Input dynamic range (1)
VDI1
Pin 22: 0 V, pins 1, 5, 9: Input sweep,
pins 23, 27, 29: Measurement
2.5
3.0

V
Input dynamic range (2)
VDI2
Pin 22: 5 V, Pin 3, 7, 11: Input sweep,
pins 23, 27, 29: Measurement
2.5
3.0

V
G-sync. dynamic range
VD0
Pin 22: 0 V or 5 V, pin 5 or 7:
Input sweep, pin 25: Measurement
2.5
3.0

V
Gain with power supply
fluctuation (1)
GVH
VCC1 = 5.25, VCC2 = 12.6,
like GV1, GV2, difference from typ.
− 0.5
0.0
+0.5
dB
Gain with power supply
fluctuation (2)
GVL
VCC1 = 4.75, VCC2 = 11.4,
like GV1, GV2, difference from typ.
− 0.5
0.0
+0.5
dB
Frequency characteristics 3
(300 MHz)
fC3
Pin 22: 0 V, difference form value
at 1MHz, pins 1, 5, 9: SG5 signal,
pins 23, 27, 29: Measurement
−3.5
−2.0
− 0.5
dB
Relative frequency
characteristics 3 (300 MHz)
∆fC3
Relative difference to fC3
−1.5
0.0
+1.5
dB
Frequency characteristics 4
(300 MHz)
fC4
Pin 22: 5 V, difference form value
at 1 MHz, pins 3, 7, 11: SG5 signal,
pins 23, 27, 29: Measurement
−3.5
−2.0
− 0.5
dB
HV circuit system
Sync. separation circuit system
Input clamp voltage
Minimum sync. separation level
VC1
VSmin
SW System
Switch threshold voltage
Signal processing system
5
AN5870K
ICs for TV
■ Electrical Characteristics at Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Relative difference to fC4
−1.5
0.0
+1.5
dB
Pin 22: 0 V or 5 V, pin 5 or 7: SG3
signal, pin 25: Measurement
−4.0
−2.5
−1.0
dB
∆GVCH1
Relative difference at 1 MHz between − 0.5
same channel of GV1 and GV2
0.0
+0.5
dB
Relative frequency characteristics
between 2 inputs (1)
∆fC1
Relative difference at 100 MHz between − 0.5
the same channels of fC1 and fC2
0.0
+0.5
dB
Relative frequency characteristics
between 2 inputs (2)
∆fC2
Relative difference at 300MHz between
the same channels of fC3 and fC4
−1.0
0.0
+1.0
dB
Crosstalk between RGB 3
(100 MHz)
CTC3
Pin 22: 0 V, pin 1 or 5 or 9: SG4 signal,
pins 23, 27, 29: Measurement

−40
−30
dB
Crosstalk between RGB 4
(100 MHz)
CTC4
Pin 22: 5 V, pin 3 or 7 or 11: SG4 signal,
pins 23, 27, 29: Measurement

−40
−30
dB
Crosstalk between 2 inputs (3)
(100 MHz)
CTI3
Pin 22: 5 V, pin 1 or 5 or 9: SG4 signal,
pins 29, 27, 23: Measurement

−50
−40
dB
Crosstalk between 2 inputs (4)
(100 MHz)
CTI4
Pin 22: 0 V, pin 3 or 7 or 11: SG4 signal,
pins 29, 27, 23: Measurement

−50
−40
dB
Crosstalk between RGB 5
(300 MHz)
CTC5
Pin 22: 0 V, pin 1 or 5 or 9: SG5 signal,
pins 23, 27, 29: Measurement

−25

dB
Crosstalk between RGB 6
(300 MHz)
CTC6
Pin 22: 5 V, pin 3 or 7 or 11: SG5 signal,
pins 23, 27, 29: Measurement

−25

dB
Crosstalk between 2 inputs 5
(300 MHz)
CTI5
Pin 22: 5 V, pin 1 or 5 or 9: SG5 signal,
pins 23, 27, 29: Measurement

−30

dB
Crosstalk between 2 inputs 6
(300 MHz)
CTI6
Pin 22: 0 V, pin 3 or 7or 11: SG5 signal,
pins 23, 27, 29: Measurement

−30

dB
Rise time (1)
tr1
Pin 22: 0 V, pin 1 or 5 or 9: SG9 signal,
pins 23, 27, 29: Measurement

1.2

ns
Rise time (2)
tr2
Pin 22: 5 V, pin 3 or 7or 11: SG9 signal,
pins 23, 27, 29: Measurement

1.2

ns
Fall time (1)
tf1
Pin 22: 0 V, pin 1 or 5 or 9: SG9 signal,
pins 23, 27, 29: Measurement

1.2

ns
Fall time (2)
tf2
Pin 22: 5 V, pin 3 or 7or 11: SG9 signal,
pins 23, 27, 29: Measurement

1.2

ns
Output VSWR/75 Ω
Γo
Pin 23 or 27 or 29: SG5 signal,
voltage standing ratio measurement

1.6

Signal processing system (continued)
Relative frequency
characteristics 4 (300 MHz)
∆fC4
G-sync. frequency characteristics fCGS
(35 MHz)
Relative gain between 2 inputs
6
ICs for TV
AN5870K
■ Electrical Characteristics at Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Rise time (1)
tr(H)
Pin 19: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

2

ns
Rise time (2)
tr(V)
Pin 18: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

2

ns
Fall time (1)
tf(H)
Pin 19: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

2

ns
Fall time (2)
tf(V)
Pin 18: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

2

ns
Rise delay time (1)
trD(H)
Pin 19: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

20
50
ns
Rise delay time (2)
trD(V)
Pin 18: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

10
40
ns
Fall delay time (1)
tfD(H)
Pin 19: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

15
45
ns
Fall delay time (2)
tfD(V)
Pin 18: Measurement, pin 13 or 14:
SG6 signal, pin 22: 0 V or 5 V

10
40
ns
Output impedance (3)
RO3
Pin 18 or 19: Measurement

70

Ω
Rise time
tr(SY)
Pin 21: SG7 signal,
pin 19: Measurement

2

ns
Fall time
tf(SY)
Pin 21: SG7 signal,
pin 19: Measurement

2

ns
Rise delay time
trD(SY)
Pin 21: SG7 signal,
pin 19: Measurement

2

ns
Fall delay time
tfD(SY)
Pin 21: SG7 signal,
pin 19: Measurement

2

ns
Pin 21: 2 V, pin 21 sink current value
measurement
4.2
5.6
7.0
µA
HV circuit system
Sync. separation circuit system
Slice level
IS1
7
AN5870K
ICs for TV
■ Electrical Characteristic (continued)
• Input signal for testing
Name
Input signal
Sine wave (f = 1 MHz, amplitude 1 V[p-p])
SG1
1 V[p-p]
SG2
Sine wave (f = 10 MHz, amplitude 1 V[p-p])
SG3
Sine wave (f = 35 MHz, amplitude 1 V[p-p])
SG4
Sine wave (f = 100 MHz, amplitude 1 V[p-p])
SG5
Sine wave (f = 300 MHz, amplitude 1 V[p-p])
Square wave (f = 62.5 kHz, amplitude 5 VOP, duty cycle 50%)
5V
SG6
0V
Square wave (f = 62.5 kHz, amplitude 1 V[p-p], low period 1 µs)
SG7
1 V[p-p]
8
SG8
Square wave (f = 62.5 kHz, amplitude 0.1 V[p-p], low period 1 µs)
SG9
Square wave (f = 62.5 kHz, amplitude 0.7 V[p-p], low period 1 µs)
ICs for TV
AN5870K
■ Terminal Equivalent Circuits
Pin No.
Equivalent circuit
Description
1
5 V (pin 8)
R signal input pin 1:
Input through a capacitor
Pin voltage (V)
Input with sync. signal
(typ.)
1.0 V[p-p]
DC 2.9 V
Pins 1,5,9
200 Ω
1 µF
75 Ω
1%
100 kΩ
2.9 V
140 µA

2
GND pin for 5 V: For R signal circuit
3
5 V (pin 8)
R signal input pin 2:
Input through a capacitor
GND
Input with sync. signal
(typ.)
1.0 V[p-p]
DC 2.9 V
Pins 3,7,11
200 Ω
1 µF
75 Ω
1%
100 kΩ
2.9 V
140 µA
4

Power supply pin for 5 V:
For G sync. circuit output
5V
5
Refer to pin 1
G signal input pin 1:
Input through a capacitor
Refer to pin 1
6

7
Refer to pin 3
G signal input pin 2:
Input through a capacitor
Refer to pin 3
8

Power supply pin for 5V:
For RGB signal circuit
5V
9
Refer to pin 1
B signal input pin 1:
Input through a capacitor
Refer to pin 1
10

11
Refer to pin 3
B signal input pin 2:
Input through a capacitor
Refer to pin3
12

Power supply pin for 5 V:
HV • Sync. separation
• For SW circuit
5V
GND pin for 5 V: For G signal circuit
GND pin for 5 V: For B signal circuit
GND
GND
9
AN5870K
ICs for TV
■ Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
Description
13
H. sync. signal input pin 1:
5 V (pin 12)
Pin voltage (V)
(typ.)
High-level: 5 V
Low-level: 0 V
15 kΩ
Pins 13,15
1 kΩ
threshold voltage:
4 kΩ
1.5 V
50 kΩ
500 Ω
14
H. sync. signal input pin 2:
5 V (pin 12)
(typ.)
High-level: 5 V
Low-level: 0 V
15 kΩ
Pins 14,16
1 kΩ
threshold voltage:
1.5 V
4 kΩ
50 kΩ
500 Ω
15
Refer to pin 13
16
Refer to pin 14
17

V sync. signal output pin 1:
Refer to pin 13
V sync. signal output pin 2:
Refer to pin 14
GND pin for 5 V:
HV • Sync. separation
• For SW circuit
18
V sync. signal output pin:
5 V (pin 12)
10
(typ.)
High-level: 5 V
Low-level: 0 V
Pins 18,19
19
GND
H. sync. signal output pin:
ICs for TV
AN5870K
■ Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
Description
20
5 V (pin 12)
20 µA
100 µA
200 Ω
20
H. sync. signal detection pin:
When detecting high-level
• Pin 20 gives priority to high-level signal
signal output
(typ.)
H. sync. signal present:
2.5 V
H. sync. signal output
30 kΩ
H. sync. not present:
200 Ω
100 µΑ 2.5 V 1 kΩ
0.1 µA
Pin voltage (V)
50 µA
21
Sync. separation circuit input pin:
• Sync. slice level is determined by
5 V (pin 12)
50 Ω
0.15 µF
2.0 V
200 Ω
21
Sync. separation circuit output
R
5.6 µA
22
0.3 V[p-p]
the following equation, adjust slice
DC 1.35 V
level according to equipment set;
5.6 (µA)
Input frequency · Sync. width
• Open when the pin is unused.
5 V (pin 12)
25 µA
the external resistor R. Referring to
Slice level = R ·
3.4 kΩ
Sync. signal
(typ.)
150 µA
6 kΩ
Input changeover signal input pin:
• When input is high: Input pin 2
(typ.)
High-level: 5 V
is selected (pins 3, 7, 11, 14, 16)
Low-level: 0 V
When input is low: Input pin 1
threshold voltage:
is selected (pins 1, 5, 9, 13, 15)
1.7 V
B signal output pin:
• Be sure to connect a capacitor to
(typ.)
DC 6.2 V
22
2.25 V
50 kΩ
500 Ω
23
12 V (pin 28)
80 Ω
output pin. If the pin is not used
with a 75 Ω terminating resistor,
75 Ω
Pins 23,27,29
220 µF
0.01 µF
do not allow a 20 mA or more
output current flow.
75 Ω
1%
80 Ω
7.8 mA
11
AN5870K
ICs for TV
■ Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
24

GND pin for 12 V
25
5 V (pin 4)
Sync. on green signal Output pin:
• If terminating with a resistor, do
80 Ω
Description
Input resistance or pin voltage
GND
(typ.)
DC 2.3 V
not allow 10 mA or more output
current flow.
70 Ω
25
80 Ω
2.1 mA
26

27
Refer to pin 23
• For RGB signal circuit
For G sync. output
G signal output pin:
• Be sure to connect a capacitor to
GND
Refer to pin 23
output pin. If the pin is not used
with a 75 Ω terminating resistor,
do not allow a 20 mA or more output current flow.
28

29
Refer to pin 23
Power supply pin for 12 V:
• For RGB signal circuit
R signal output pin:
• Be sure to connect a capacitor to
12 V
Refer to pin 23
output pin. If the pin is not used
with a 75 Ω terminating resistor,
do not allow a 20 mA or more
output current to flow.
30
12

Power supply pin for 12 V:
• For RGB signal circuit
12 V
ICs for TV
AN5870K
■ Technical Information
• Operational explanation
1. SW block
Switches over R, G, B, H, V signal of 2 systems.
SW pin (pin 22)
Selected pins
In low-level
R in 1 (pin 1), G in 1 (pin 5), B in 1 (pin 9), H in 1 (pin 13), V in 1 (pin 15)
In high-level
R in 2 (Pin 3), G in 2 (pin 7), B in 2 (pin 11), H in 2 (pin 14), V in 2 (pin 16)
2. High-level signal detection block
Sync.-in pin (pin 21) is a pin for inputting the sync.-on green signal and it is separated into the
composite sync. signal (composite sync.) inside. H-in 1 and 2 pins (pin 13 or pin 14) are input
pins for the video signal and the separated horizontal signal.
The high-level signal detection block discriminates the presence of H-in signal which is
selected in SW block and provides the output to H-out pin (pin 19) in the following manner.
Input signal
Output signal
Sync.-in pin (pin 21)
H-in pin (pin 13 · pin 14)
H-out pin (pin 19)
●
●
H-in signal
●
Sync.in signal
●
H-in signal
DC (state of sync.-in pin)
H signal detection pin (pin 20) voltage becomes under 1 V or over 4 V if H. sync. signal is not
inputted.
The output signal for the H. sync. signal detection pin voltage becomes as follows and it has
hysteresis characteristics. It is possible to adjust the H. sync. signal detection time by means of an
external capacitor.
When rising
from 0 V
0V
1V
2V
Sync-in signal selection
H. sync. signal detection
pin voltage
(H-in signal is selected if 2 V is exceeded)
(Detection voltage change)
(Detection voltage change)
1V
When detecting
H. sync. signal
(Sync.-in signal is selected
when lowed under 1 V)
2.5V
4V
H-in signal selection
(Sync.-in signal is selected
when 4 V is exceeded)
(Detection voltage change)
(Detection voltage change)
When decreasing
from 5 V
(H-in signal is selected when lowed under 3 V)
H. sync. signal
detection
pin voltage
3V
5V
Sync.-in signal selection
H. sync. signal
detection
pin voltage
13
AN5870K
ICs for TV
■ Usage Notes
1. About C22 0.01 µF capacitor (refer to ■ Application Circuit Example)
In the case of evaluation board for this IC without heat sink, a resonance phenomena takes place at approx.
400 MHz between pin 23 B-out pin and pin 22 SW pin and affects the frequency characteristic of B-out pin.
To solve the above problem, the correction can be made by attaching C22 0.01 µF capacitor between pin 22
SW pin and GND at a place as close to the IC as possible.
In the case of using this IC, study if the correction is necessary.
2. About latch-up
In our latch-up testing, a voltage charged to 200 pF capacitor is applied to the IC pin, in the state of providing
only a voltage to the power supply pin of the IC, and we confirm that the latch-up does not occur up to 200 V.
It is confirmed that this IC does not cause latch-up up to 200 V under a condition including the peripheral
components. (Refer to ■ Application Circuit Example).
Be careful to pin 20, pin 21, pin 28 and pin 30 which are especially weak.
In the case of using this IC, the peripheral components to be attached externally should be placed as close to
the IC as possible.
■ Application Circuit Example
R-in1
R-in2
30
75 Ω
±1%
29
G-in2
VCC1 3
28
75 Ω
±1%
4
27
B-in2
6
25
1 µF
VCC1 7
24
8
23
75 Ω
±1%
14
VCC1
VCC2
0.01 µF
220 µF
0.01 µF
9
10
VCC2
1 µF
VCC1 11
75 Ω
±1%
12
C22
Sync. sep
21
R-out
75 Ω
±1%
G-out
75 Ω
±1%
B-out
200 Ω
220 µF
0.01 µF
22
Sw select bias
75 Ω
±1%
G sync.
6 dB
75 Ω
±1%
0.15 µF
SW
Sync. in
20
Hsync
detect sw
0.1 µF
19
13
18
10 Ω
14
17
10 Ω
15
16
H-in2
220 µF
6 dB
75 Ω
±1%
10 Ω
V-in1
VCC1
26
H-in1
VCC2
6 dB
5
1 µF
B-in1
2
1 µF
1 µF
G-in1
VCC2 (12 V)
VCC1 (5 V)
VCC1
1 µF
1
H-out
V-out
10 Ω
V-in2