M52755SP - Mitsubishi Electric Semiconductor

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

DESCRIPTION

The M52755SP is a semiconductor integrated circuit for the

RGBHV interface. The device features switching signals input from

two types of image sources and outputting the signals to the CRT

display, etc. Synchronous signals, meeting a frequency band of

10kHz to 200kHz, are output at TTL. The frequency band of video

signals is 250MHz, acquiring high-resolution images, and are

optimum as an interface IC with high-resolution CRT display and

various new media.

FEATURES

•

Frequency band:RGB......................................................250MHz

HV.............................................10Hz to 200kHz

Input level:RGB.........................................................0.7V

P-P

(typ.)

HV TTL input.............................3.5V

O-P

(both channel)

•

Only the G channel is provided with sync-on video output.

•

The TTL format is adopted for HV output.

APPLICATION

Display monitor

RECOMMENDED OPERATING CONDITION

Supply voltage r ange........................................................4.5 to 5.5V

Rated supply voltage..................................................................5.0V

PIN CONFIGURATION (TOP VIEW)

Outline 32P4B

285

276

249

2310

2211

2112

15 18

16 17

GND

Vcc2 (G)

OUTPUT (for sync on G)

OUTPUT (R)

OUTPUT (G)

Vcc2 (B)

VCC1 (G)

INPUT1 (B)

INPUT1 (G)

GND

VCC1 (B)

INPUT1 (R)

INPUT2 (R)

INPUT1 (V)

VCC1 (R) Vcc2 (R)

GND

INPUT1 (H)

OUTPUT (B)

M52755SP

SWITCH

OUTPUT (H)

OUTPUT (V)

VCC

GND

INPUT2 (V)

INPUT2 (B)

INPUT2 (H)

INPUT2 (G)

GND NC

NC : NO CONNECTION

BLOCK DIAGRAM

GND

GND Vcc2 (G) OUTPUT

OUTPUT (R) OUTPUT (G) Vcc2 (B)

VCC1 (G) INPUT1 (B)INPUT1 (G) GNDVCC1 (B)

INPUT1 (R) INPUT2 (R)

INPUT1 (V)

VCC1 (R)

Vcc2 (R) GND

INPUT1 (H)

OUTPUT (B) SWITCH

OUTPUT (H)

OUTPUT (V)VCC GND

GND INPUT2 (V)

INPUT2 (B)

INPUT2 (H)

INPUT2 (G)

GND

236 8 10

45 97

1161514131211

32 31 30 29 28 27 26 24 2325 22 21 20 18 1719

(for sync on G)

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

ABSOLUTE MAXIMUM RATINGS

(Ta=25

ELECTRICAL CHARACTERISTICS

=5V, Ta=25

C, unless otherwise noted)

Symbol Parameter Ratings Unit

Supply voltage 7.0 V

Power dissipation 1603 mW

opr

Ambient temperature -20 to +85

stg

Storage temperature -40 to +150

opr

Recommended supply voltage 5.0 V

opr’

Recommended supply voltage range 4.5 to 5.5 V

Surge Electrostatic discharge

200 V

Symbol Parameter

Test conditions Limits Unit

Test

point

(s)

(V) Input SW

CC SW2

Rin1 SW4

Gin1 SW6

Bin1 SW7

Hin1 SW8

Vin1

SW10

Rin2

SW12

Gin2

SW14

Bin2

SW15

Hin2

SW16

Vin2 SW17

Switch

Min. Typ. Max.

CC1

Circuit current1

(no signal) A5

−

GND 46 66 86 mA

CC2

Circuit current2

(no signal) A5

−

OPEN

46 66 86 mA

(RGB SW)

DC1

Output DC voltage1

T.P.31

T.P.28

T.P.25

−

GND 1.85 2.05 2.25 V

DC2

Output DC voltage2

T.P.31

T.P.28

T.P.25

−

OPEN

1.85 2.05 2.25 V

DC3

Output DC voltage3

T.P.23

−

GND 0.75 1.15 1.55 V

DC4

Output DC voltage4

T.P.23

−

OPEN

0.75 1.15 1.55 V

max1

Maximum allowable

input1

T.P.2

T.P.4

T.P.6

5abb

SG1

bab

SG1

bba

SG1

−

GND 2.0 2.4

−

P-P

max2

Maximum allowable

input2

T.P.10

T.P.12

T.P.14

−

−b

−abb

SG1 bab

SG1 bba

SG1 b

−b

−a

OPEN 2.0 2.4 −VP-P

GV1 Voltage gain1 T.P.31

T.P.28

T.P.25 5abb

SG2 bab

SG2 bba

SG2 b

−b

GND 0.3 0.9 1.5 dB

∆GV1 Relative voltage gain1 Relative to measured values above -0.4 0 0.4 dB

GV2 Voltage gain2 T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG2 bab

SG2 bba

SG2 b

−b

−a

OPEN 0.3 0.9 1.5 dB

∆GV2 Relative voltage gain2 Relative to measured values above -0.4 0 0.4 dB

GV3 Voltage gain3 T.P.23 5b

−a

SG2 b

−b

GND -0.4 0.2 0.8 dB

GV4 Voltage gain4 T.P.23 5b

−b

−a

SG2 b

−b

−a

OPEN -0.4 0.2 0.8 dB

FC1 Freq. characteristic1

(100MHz) T.P.31

T.P.28

T.P.25 5abb

SG4 bab

SG4 bba

SG4 b

−b

GND -1.0 0 1.0 dB

∆FC1 Relative Freq.

characteristic1 (100MHz) Relative to measured values above -1.0 0 1.0 dB

FC2 Freq. characteristic2

(100MHz) T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG4 bab

SG4 bba

SG4 b

−b

−a

OPEN -1.0 0 1.0 dB

∆FC2 Relative Freq.

characteristic2 (100MHz) Relative to measured values above -1.0 0 1.0 dB

FC3 Freq. characteristic3

(250MHz) T.P.31

T.P.28

T.P.25 5abb

SG5 bab

SG5 bba

SG5 b

−b

GND -3.0 -1.5 1.0 dB

FC4 Freq. characteristic4

(250MHz) T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG5 bab

SG5 bba

SG5 b

−b

−a

OPEN -3.0 -1.5 1.0 dB

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

ELECTRICAL CHARACTERISTICS (cont.)

Symbol Parameter

Test conditions Limits Unit

Test

point

(s)

VCC

(V) Input SW

VCC SW2

Rin1 SW4

Gin1 SW6

Bin1 SW7

Hin1 SW8

Vin1 SW10

Rin2 SW12

Gin2 SW14

Bin2 SW15

Hin2 SW16

Vin2 SW17

Switch Min. Typ. Max.

C.T.I.1 Crosstalk between two

inputs1 (10MHz) T.P.31

T.P.28

T.P.25 5abb

SG3 bab

SG3 bba

SG3 b

−b

−GND

↓

OPEN −-60 -50 dB

C.T.I.2 Crosstalk between two

inputs2 (10MHz) T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG3 bab

SG3 bba

SG3 b

−b

−GND

↓

OPEN −-60 -50 dB

C.T.I.3 Crosstalk between two

inputs3 (100MHz) T.P.31

T.P.28

T.P.25 5abb

SG4 bab

SG4 bba

SG4 b

−b

−GND

↓

OPEN −-40 -35 dB

C.T.I.4 Crosstalk between two

inputs4 (100MHz) T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG4 bab

SG4 bba

SG4 b

−b

−GND

↓

OPEN −-40 -35 dB

C.T.C.1 Crosstalk between

channels1 (10MHz) T.P.31

T.P.28

T.P.25 5abb

SG3 bab

SG3 bba

SG3 b

−b

GND −-50 -40 dB

C.T.C.2 Crosstalk between

channels2 (10MHz) T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG3 bab

SG3 bba

SG3 b

−b

−a

OPEN −-50 -40 dB

C.T.C.3 Crosstalk between

channels3 (100MHz) T.P.31

T.P.28

T.P.25 5abb

SG4 bab

SG4 bba

SG4 b

−b

GND −-30 -25 dB

C.T.C.4 Crosstalk between

channels4 (100MHz) T.P.31

T.P.28

T.P.25 5b

−b

−abb

SG4 bab

SG4 bba

SG4 b

−b

−a

OPEN −-30 -25 dB

Tr1 Pulse characteristic1

T.P.31

T.P.28

T.P.25 5a

SG6 a

SG6 b

−b

GND −1.6 2.5 nsec

Tf1 T.P.31

T.P.28

T.P.25 5a

SG6 a

SG6 b

−b

GND −1.6 2.5 nsec

Tr2 Pulse characteristic2

T.P.31

T.P.28

T.P.25 5b

−b

−a

SG6 a

SG6 b

−b

−a

OPEN −1.6 2.5 nsec

Tf2 T.P.31

T.P.28

T.P.25 5b

−b

−a

SG6 a

SG6 b

−b

−a

OPEN −1.6 2.5 nsec

(HV SW)

VoH1 High level

output voltage1 T.P.19

T.P.20 5b

−b

−c

5.0V c

5.0V b

−b

GND 4.5 5.0 −V

VoH2 High level

output voltage2 T.P.19

T.P.20 5b

−b

−c

5.0V c

5.0V a

OPEN 4.5 5.0 −V

VoL1 Low level

output voltage1 T.P.19

T.P.20 5b

−b

−c

0V c

0V b

−b

GND −0.2 0.5 V

VoL2 Low level

output voltage2 T.P.19

T.P.20 5b

−b

−c

0V c

0V a

OPEN −0.2 0.5 V

Vith1 Input selectional

voltage1 T.P.7

T.P.8 5b

−b

−c

Variable c

Variable b

−b

GND 2.0 2.5 3.0 V

Vith2 Input selectional

voltage2 T.P.15

T.P.16 5b

−b

−c

Variable c

Variable a

OPEN 2.0 2.5 3.0 V

Trd1 Rising delay time1 T.P.19

T.P.20 5b

−b

−a

SG7 a

SG7 b

−b

GND −100 150 nsec

Trd2 Rising delay time2 T.P.19

T.P.20 5b

−b

−a

SG7 a

OPEN −100 150 nsec

Tfd1 Falling delay time1 T.P.19

T.P.20 5b

−b

−a

SG7 a

SG7 b

−b

GND −50 100 nsec

Tfd2 Falling delay time2 T.P.19

T.P.20 5b

−b

−a

SG7 a

OPEN −50 100 nsec

Vsth1 Switching selectional

voltage1 T.P.17 5a

SG1 a

SG7 a

SG7 b

−b

−c 0.5 1.5 2.0 V

Vsth2 Switching selectional

voltage2 T.P.17 5b

−b

−a

SG1 a

SG7 a

SG7 c 0.5 1.5 2.0 V

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

ELECTRICAL CHARACTERISTICS TEST METHOD

It omits the SW.No accorded with signal input pin because it is

already written in Table.

SW A, SW1, SW3, SW5 is in side a if there is not deﬁned specially.

ICC1, ICC2 Circuit current (no signal)

The condition is shown as Table 1. Set SW17 to GND (or OPEN)

and SW A to side b, measure the current by current meter A. The

current is as ICC1 (ICC2).

VDC1, VDC2 Output DC voltage

Set SW17 to GND (or OPEN), measure the DC voltage of T.P.31

(T.P.28, T.P.25) when there is no signal input. The DC voltage is as

VDC1 (or VDC2).

VDC3, VDC4 Output DC voltage

Measure the DC voltage of T.P.23 same as note2, the DC voltage is

as VDC3 (or VDC4).

Vimax1, Vimax2 Maximum allowable input

Set SW17 to GND, SG1 as the input signal of Pin 2. Rising up the

amplitude of SG1 slowly, read the amplitude of input signal when

the output waveform is distorted. The amplitude is as Vimax1. And

measure Vimax1 when SG2 as the input signal of Pin 4, Pin 6 in

same way. Next, set SW to OPEN, measure Vimax2 when SG2 as

the input signal of Pin10, 12, 14.

GV1, ∆GV1, GV2, ∆GV2

1. The condition is shown as Table.

2. Set SW17 to GND, SG2 as the input signal of Pin 2. At this time,

read the amplitude output from T.P 31. The amplitude is as VOR1.

3. Voltage gain GV1 is

4. The method as same as 2 and 3, measure the voltage gain GV1

when SG2 as the input signal of Pin 4, 6.

5. The difference of each channel relative voltage gain is as ∆GV1.

6. Set SW17 to OPEN, measure GV2, ∆GV12 in the same way.

GV3, GV4, V oltage gain

1. The condition is shown as table. This test is by active probe.

2. Measure the amplitude output from T.P.23.

3. Measure the GV3, GV4 by the same way as GV1, ∆GV1, GV2,

∆GV2.

FC1, ∆FC1, FC2, ∆FC2

1. The condition is shown as table. This test is by active probe.

2. Set SW17 to GND, SG2 as the input signal of Pin 2. Measure the

amplitude output from T.P.31. The amplitude is as VOR1. By the

same way, measure the output when SG4 is as input signal of

Pin 2, the output is as VOR2.

3. The frequency characteristic FC1 is

4. The method as same as 2 and 3, measure the frequency FC1

when input signal to Pin 4, 6.

5. The difference betw een of each channel frequency char acteristic

is as ∆FC1.

6. Set SW17 to OPEN, measure FC2, ∆FC2.

FC3, FC4 Freq. characteristic

By the same way as Note7 measure the FC3, FC4 when SG5 of

input signal.

C.T.I.1, C.T.I.2 Crosstalk between two input

1. The condition is shown as Table. This test is by active prove.

2. Set SW17 to GND, SG3 as the input signal of Pin 2. Measure the

amplitude output from T.P.31. The amplitude is as VOR3.

3. Set SW17 to OPEN, measure the amplitude output from T.P.31.

The amplitude is as VOR3'.

4. The crosstalk between two inputs C.T.I.1 is

5. By the same way, measure the crosstalk between two inputs

when SG3 as the input signal of Pin 4, Pin 6.

6. Next, set SW17 to OPEN, SG3 as the input signal of Pin 10,

measure the amplitude output from T.P.31. Theamplitude is as

VOR4.

7. Set SW17 to GND, measure the amplitude output from T.P.31.

The amplitude is as VOR4'.

8. The crosstalk between two inputs C.T.I.2 is

9. By the same way, measure the crosstalk between channels

when SG3 as the input signal of Pin 12,14.

C.T.I.3, C.T.I.4 Crosstalk between two input

Set SG4 as the input signal, and then the same method as table,

measure C.T.I.3, C.T.I.4.

C.T.C.1, C.T.C.2 Crosstalk between channel

1. The condition is as Table. This test is by active prove.

2. Set SW17 to GND, SG3 as the input signal of Pin 2. Measure the

amplitude output from T.P.31. The amplitude is as VOR5.

3. Next, measure T.P.28, T.P.25 in the same state, and the

amplitude is as VOG5, VOB5.

4. The crosstalk between channels C.T.C.1 is

GV1= 20 LOG 0.7 [VP-P]

VOR1 [VP-P][dB]

FC1= 20 LOG VOR1 [VP-P]

VOR2 [VP-P][dB]

C.T.I.1= 20 LOG VOR3 [VP-P]

VOR3' [VP-P][dB]

C.T.I.2= 20 LOG VOR4 [VP-P]

VOR4' [VP-P][dB]

C.T.C.1= 20 LOG VOR5

VOG5 or VOB5[dB]

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

5. Measure the crosstalk between channels when SG3 is as the

input signal of Pin 4, Pin 6 .

6. Next, set SW17 to OPEN, SG3 as the input signal of Pin10,

measure the amplitude output from T.P.31. The amplitude is as

VOR6.

7. Next, measure the amplitude output from T.P.28, T.P.25 in the

same state. The amplitude is as VOG6, VOB6.

8. The crosstalk between channels C.T.C.2 is

9. By the same way, measure the crosstalk between channels

when input signal to Pin12, 14 .

C.T.C.3, C.T.C.4 Crosstalk between channel

Set SG4 as the input signal, and the same method as table,

measure C.T.C.3, C.T.C.4.

T r1, Tf1, Tr2, Tf2 Pulse characteristic

1. The condition is as Table. Set SW17 to GND (or OPEN).

2. The rising of 10% to 90% for input pulse is Tri, the falling of

10% to 90% for input pulse is Tﬁ.

3. Next, the rising of 10% to 90% for output pulse is Tro, the falling

of 10% to 90% for output pulse is Tfo.

4. The pulse characteristic Tr1, Tf1 ( Tr2, Tf2 ) is

VoH1, VoH2 High level output voltage

The condition is as Table. Set SW17 to GND (OPEN), input 5V at

input terminal. Measure the output voltage, the voltage is as VOH1

(VOH2).

VoL1, VoL2 Low level output voltage

The condition is as Table. Set SW17 to GND (OPEN), input 0V at

input terminal. Measure the output voltage, the voltage is as VoL1

(VoL2).

Vith1, Vith2 Input selectional voltage

The condition is as table. Set SW17 to GND (OPEN), increasing

gradually the voltage of input terminal from 0V, measure the voltage

of input terminal when output ter minal is 4.5V. The input voltage is

as Vith1 (Vith 2).

Trd1, Trd2 Rising delay time

Tfd1, Tfd2 Falling delay time

The condition is as table. Set SW17 to GND (OPEN), SG7 is as the

input signal of input terminal, measure the wav eform of output. Ris-

ing delay time is as Trd1 (Trd2). Falling delay time is as Tfd1 (Tfd2).

Reference to the Fig. as shown below.

Vsth1, Vsth2 Switching selectional voltage

1. The condition is as table. SG1 is as the input signal of Pin 2,

Pin4, Pin6, and SG7 is as the input signal of Pin7, Pin8. There is

no input at another pins.

2. Input 0V at Pin17, conﬁrm that there are signals output from

T.P.19, T.P.20, T.P.23, T.P.25, T.P.28, T.P.31.

3. Increase gradually the voltage of terminal Pin17. Read the

voltage when there is no signal output from the terminals listed

as above. The voltage is as Vsth1.

4. SG1 as the input signal of Pin10, Pin12, Pin14, and SG7 as the

input signal of Pin15, Pin16. There is no input at another pins.

5. Inputs 5V at Pin17, conﬁrm that there is no signal output from

T.P.19, T.P.20, T.P.23, T.P.25, T.P.28, T.P.31.

6. Decreasing gradually the voltage of terminal Pin 17. Read the

voltage when there are signals output from the terminals listed

as above. The voltage is as Vsth2.

C.T.C.2= 20 LOG VOR6

VOG6 or VOB6[dB]

100%

10%

90%

0% Tf

Tr1 (Tr2)=√(Tro)2 - (Tri)2 (nsec)

Tf1 (Tf2)=√(Tfo)2 - (Tfi)2 (nsec)

SG7

Output waveform

50%

TfdTrd

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

INPUT SIGNAL

SG No. Signals

SG1

Sine wave (f=60kHz, 0.7VP-P, amplitude variable)

SG2 Sine wave (f=1MHz, amplitude 0.7VP-P)

SG3 Sine wave (f=10MHz, amplitude 0.7VP-P)

SG4 Sine wave (f=100MHz, amplitude 0.7VP-P)

SG5 Sine wave (f=250MHz, amplitude 0.7VP-P)

SG6

Pulse with amplitude 0.7VP-P (f=60kHz, duty80%)

SG7

Square wave (Amplitude 5.0VO-P TTL, f=60kHz, duty50%)

0.7VP-P(amplitude variable)

0.7VP-P

NOTE HOW TO USE THIS IC

1. R, G, B input signal is 0.7VP-P of standard video signal.

2. H, V input is 5.0V TTL type.

3. Input signal with sufﬁcient low inpedance to input terminal.

4. The terminal of H, V output pin are shown as Fig.1. It is possible

to reduce rise time by inser t the resister between Vcc line and H, V

output Pin, but set the value of resister in order that the current is

under 7.5mA. Setting the value of R is more than 2k Ω as shown in

Fig.1.

5. The terminal of R,G,B output pin (Pin 25, 28, 31). It is possible to

add a pull-up resister according as drive ability. but set the value of

resister in order that the current is under 10mA. Setting the value of

R is more than 500Ω as shown in Fig.2.

6. Switch (Pin 17) can be changed when this terminal is GND or

OPEN

When GND : Signal output from input 1

When OPEN: Signal output from input 2

When the switch is being used as Fig.3

0 to 0.5V : Signal output from input 1

2 to 5V : Signal output from input 2

It is not allowable to set voltage higher than VCC.

NOTICE OF MAKING PRINTED CIRCUIT BOARD.

Please notice following as shown below. It will maybe cause

something oscillation because of the P.C.B. layout of the wide band

analog switch.

⋅ The distance between resister and output pin is as short as

possible when insert a output pull-down resister.

⋅ The capitance of output terminal as small as possible.

⋅ Set the capitance between Vcc and GND near the pins if possible.

⋅ Using stable power-source (if possible the separated power-

source will be better).

⋅ It will reduce the oscillation when add a resister that is tens of

ohms between output pin and next stage.

⋅ Assign an area as large as possible for grounding.

Fig.1

1<7.5mA

5V 5V

1kΩR

Fig.2

1<10mA

50Ω

430ΩR

Fig.3

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

TEST CIRCUIT

0.01µ

TP31

RTP28

GTP25

TP23

GOUT TP20

HTP19

OPEN

SW17

0.01µ47µ

(for sync on G)

SW5SW3

SW1

0.01µ

47µ0.01µ0.01µ

0.01µ100µ

47µ47µ

0.01µ100µ0.01µ100µ0.01µ100µ0.01µ100µ0.01µ100µ

abcb

abbcc

SW2 SW4 SW6

SW7 SW8

SW10 SW12 SW14

SW16SW15

aba

TP14

TP12 TP16

TP15

TP6 TP8

TP7 TP10

TP2 TP4

213

456789

10 11 12 13 14 15 16

47µ

0.01µ

SWA

VCC5V

3132 30 29 28 27 26 25 24 23 22 21 20 19 18 17

SG1

SG2

SG3

SG4

SG5

SG6

SG7

M52755SP

Units Resistance : Ω

Capacitance : F

SW GND : INPUT1

SW OPEN : INPUT2

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

TYPICAL CHARACTERISTICS

AMBIENT TEMPERATURE Ta (°C)

0 25 50 75 100 125

400

800

1200

2000

150-20

1600

1603

THERMAL DERATING (MAXIMUM RATING)

POWER DISSIPATION Pd (mW)

DESCRIPTION OF PIN

Pin No. Name DC voltage (V ) Peripheral circuit of pins Remarks

VCC1 (R)

VCC1 (G)

VCC1 (B) 5.0 −

Input1 (R)

Input1 (G)

Input1 (B) 1.5 Input signal with low

impedance.

8Input1 (H)

Input1 (V) −

Input pulse between 3V

and 5V.

9, 11, 13, 18,

24, 27, 30 GND GND −

800

620 2.2V

2.59mA

0.2mA

3 to 5V

MITSUBISHI ICs (Monitor)

M52755SP

WIDE BAND ANALOG SWITCH

DESCRIPTION OF PIN (cont.)

Pin No. Name DC voltage (V ) Peripheral circuit of pins Remarks

Input2 (R)

Input2 (G)

Input2 (B) 1.5 Input signal with low

impedance.

16 Input2 (H)

Input2 (V) −

Input pulse between 3V

and 5V.

17 Switch 2.6 Switch by OPEN and

GND.

20 Output (V)

Output (H) −Output impedance is

built-in.

21 VCC

(H, V, Switch) 5−

22 NC −−

Output

(Sync onG)

Output (B)

Output (G)

Output (R)

1.15

2.05

Output impedance is

built-in.

VCC2 (B)

VCC2 (G)

VCC2 (R) 5−

800

620 2.2V

2.59mA

0.2mA

3 to 5V

10k

13k

12k

2.3V

7.3k

430

25, 28, 31 500