Linear LTC6605-10 Schematic [ru]

LTC6605-10

Dual Matched 10MHz Filter

with Low Noise, Low Distortion

Differential Amplifi er

FEATURES

n

Two Matched 10MHz 2nd Order Lowpass Filters

with Differential Amplifi ers

Gain Match: ±0.35dB Max, Passband
Phase Match: ±1.2° Max, Passband

Single-Ended or Differential Inputs

n

< –90dBc Distortion in Passband

n

2.1nV/√Hz Op Amp Noise Density

n

Pin-Selectable Gain (0dB/12dB/14dB)

n

Pin-Selectable Power Consumption (0.35mA/

16.2mA/33.1mA)

n

Rail-to-Rail Output Swing
Adjustable Output Common Mode Voltage Control
Buffered, Low Impedance Outputs

n

2.7V to 5.25V Supply Voltage

n

Small 22-Pin 6mm × 3mm × 0.75mm DFN Package

APPLICATIONS

n

Broadband Wireless ADC Driver/Filter

n

Antialiasing Filter

n

Single-Ended to Differential Conversion

n

DAC Smoothing Filter

n

Zero-IF Direct Conversion Receivers

DESCRIPTION

The LTC®6605-10 contains two independent, fully differ­ential amplifi ers confi gured as matched 2nd order 10MHz
lowpass fi lters. The f
range of 9.7MHz to 14MHz.

The internal op amps are fully differential, feature very
low noise and distortion, and are compatible with 16-bit
dynamic range systems. The inputs can accept single­ended or differential signals. An input pin is provided
for each amplifi er to set the common mode level of the
differential outputs.

Internal laser-trimmed resistors and capacitors determine
a precise, very well matched (in gain and phase) 10MHz
2nd order fi lter response. A single optional external re­sistor per channel can tailor the frequency response for
each amplifi er.

Three-state BIAS pins determine each amplifi er’s power
consumption, allowing a choice between shutdown, me­dium power or full power.

The LTC6605-10 is available in a compact 6mm × 3mm
22-pin leadless DFN package and operates over a –40°C
to 85°C temperature range.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.

of the fi lters is adjustable in the

–3dB

TYPICAL APPLICATION

Dual, Matched 9.7MHz Lowpass Filter

+

3V

V

INA

–

+

3V

V

INB

–

1

2

+

3

4

–

5

LTC6605-10

6

7

8

+

9

10

–

11

22

21

20

19

18

17

16

15

14

13

12

660510 TA01

0.1μF

0.1μF

0.1μF

0.1μF

Channel to Channel Phase Matching

120

352 TYPICAL UNITS

= 25°C

T

3V

V

–

OUTA

+

3V

V

–

OUTB

+

A

= 10MHz

f

100

IN

80

60

40

NUMBER OF UNITS

20

0

–1.0

–0.6 –0.2–0.4–0.8

0 0.6 0.80.40.2 1.0

PHASE MATCH (DEG)

660510 TA01b

660510f

1

LTC6605-10

(Note 1)

PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS

Total Supply Voltage (V+ to V–) ................................5.5V

Input Current (Note 2) ..........................................±10mA

Output Short-Circuit Duration (Note 3) ............ Indefi nite

Operating Temperature Range (Note 4).... –40°C to 85°C

Specifi ed Temperature Range (Note 5) ....–40°C to 85°C

Junction Temperature ........................................... 150°C

Storage Temperature Range ................... –65°C to 150°C

ORDER INFORMATION

TOP VIEW

+IN4 A

1

+IN1 A

2

BIAS A

3

–IN1 A

4

–IN4 A

5

–

V

6

+IN4 B

7

+IN1 B

8

BIAS B

9

–IN1 B

10

–IN4 B

11

22-LEAD (6mm × 3mm) PLASTIC DFN

EXPOSED PAD (PIN 23) IS V

DJC PACKAGE

T

= 150°C, θJA = 46.5°C/W

JMAX

22

–OUT A

+

A

21

V

–

V

20

V

19

OCMA

+OUT A

18

17

16

15

14

13

12

–

V

–OUT B

+

B

V

–

V

V

OCMB

+OUT B

23

–

, MUST BE SOLDERED TO PCB

LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE

LTC6605CDJC-10#PBF LTC6605CDJC-10#TRPBF 660510 22-Lead (6mm × 3mm) Plastic DFN 0°C to 70°C
LTC6605IDJC-10#PBF LTC6605IDJC-10# TRPBF 660510 22-Lead (6mm × 3mm) Plastic DFN –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/

DC ELECTRICAL CHARACTERISTICS

The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at TA = 25°C. V+ = 3V, V– = 0V, V
R

= 10k. The fi lter is confi gured for a gain of 1, unless otherwise noted. VS is defi ned as (V+ – V–). V

BAL

V

–OUT

)/2. V

is defi ned as (V

INCM

INP

+ V

INM

)/2. V

is defi ned as (V

OUTDIFF

+OUT

– V

INCM

–OUT

). V

= V

= mid-supply, BIAS tied to V+, RL = Open,

OCM

is defi ned as (V

INDIFF

is defi ned as (V

OUTCM

– V

INP

). See Figure 1.

INM

+OUT

+

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

Differential Offset Voltage (at Op Amp

VS = 2.7V to 5V

l

±0.25 ±1 mV

Inputs) (Note 6)

ΔVOS/ΔT Differential Offset Voltage Drift (at Op

Amp Inputs)

I

B

Input Bias Current (at Op Amp Inputs)
(Note 7)

I

OS

Input Offset Current

BIAS = V

+

BIAS = Floating
BIAS = V

+

BIAS = Floating

l
l

l

–60

l

–30

±1
±1

–25

–12.5

μV/°C
μV/°C

0
0

μA
μA

±1 μA

(at Op Amp Inputs) (Note 7)

2

660510f

LTC6605-10

DC ELECTRICAL CHARACTERISTICS

The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
R

= 10k. The fi lter is confi gured for a gain of 1, unless otherwise noted. VS is defi ned as (V+ – V–). V

BAL

V

–OUT

)/2. V

is defi ned as (V

INCM

INP

+ V

INM

)/2. V

= 25°C. V+ = 3V, V– = 0V, V

A

is defi ned as (V

OUTDIFF

+OUT

– V

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

INCM

Input Common Mode Voltage Range
(Note 8)

CMRR Common Mode Rejection Ratio

(ΔV

/ΔVOS) (Note 9)

INCM

PSRR Power Supply Rejection Ratio

(ΔV

/ΔVOS) (Note 10)

S

V

V

V
R
V

I

SC

V
I

S

OSCM

OCM

MID

VOCM

OUT

S

Common Mode Offset Voltage
(V

– V

OUTCM

OCM

)

Output Common Mode Range
(Valid Range for V

Self-Biased Voltage at the V
Input Resistance of V
Output Voltage Swing, High

(Measured Relative to V

Output Voltage Swing, Low
(Measured Relative to V

Pin) (Note 8)

OCM

OCM

+

)

–

)

OCM

Pin

Output Short-Circuit Current (Note 3) VS = 3V

Supply Voltage
Supply Current (per Channel) VS = 2.7V to 5V; BIAS = V

Pin VS = 3V

VS = 3V
V

= 5V

S

= 3V; ΔV

V

S

V

= 5V; ΔV

S

= 2.7V to 5V

V

S

= 3V

V

S

V

= 5V

S

= 3V

V

S

V

= 5V

S

= 3V; IL = 0mA

V

S

V

= 3V; IL = 5mA

S

V

= 3V; IL = 20mA

S

V

= 5V; IL = 0mA

S

V

= 5V; IL = 5mA

S

V

= 5V; IL = 20mA

S

= 3V; IL = 0mA

V

S

V

= 3V; IL = –5mA

S

V

= 3V; IL = –20mA

S

V

= 5V; IL = 0mA

S

V

= 5V; IL = –5mA

S

V

= 5V; IL = –20mA

S

V

= 5V

S

INCM
INCM

= 1.5V
= 2.5V

VS = 2.7V to 5V; BIAS = Floating
V

= 2.7V to 5V; BIAS = V

R
t
t

BIAS

ON

OFF

S

BIAS Pin Range for Shutdown Referenced to V
BIAS Pin Range for Medium Power Referenced to V
BIAS Pin Range for Full Power Referenced to V
BIAS Pin Self-Biased Voltage (Floating) Referenced to V
BIAS Pin Input Resistance
Turn-On Time VS = 3V, V
Turn- O f f Time VS = 3V, V

BIAS

BIAS

–

–

–

–

= V– to V
= V+ to V

+

–

–OUT

+

–

INCM

). V

= V

= mid-supply, BIAS tied to V+, RL = Open,

OCM

is defi ned as (V

INDIFF

l
l

l
l

l

l
l

l
l

l

l

l
l
l

l
l
l

l
l
l

l
l
l

l
l

l

l
l
l

l

l

l

l

l

–0.2
–0.2

1.1

1.1

1.475 1.5 1.525 V

12.5 18 23.5 kΩ

±40
±50

2.7 5.25 V

2.3 V

1.05 1.15 1.25 V
100 150 200 kΩ

is defi ned as (V

OUTCM

– V

INP

46
46

). See Figure 1.

INM

74
74

66 95 dB

±10
±10

245
285
415

350
390
550

120
135
195

175
200
270

±70
±95

33.1

16.2

0.35

00.4V

11.5V

400 ns
400 ns

1.7

4.7

±15
±15

2
4

450
525
750

625
700

1000

225
250
350

325
360
475

45

26.5

1.6

S

+OUT

+

V
V

dB
dB

mV
mV

V
V

mV
mV
mV

mV
mV
mV

mV
mV
mV

mV
mV
mV

mA
mA

mA
mA
mA

V

660510f

3

LTC6605-10

AC ELECTRICAL CHARACTERISTICS

The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T

= 25°C. V+ = 3V, V– = 0V, V

A

otherwise noted. Filter confi gured as in Figure 2, unless otherwise noted. VS is defi ned as (V+ – V–). V
V

)/2. V

–OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

Gain Filter Gain ΔV

Phase Filter Phase ΔV

ΔGain Gain Match (Channel-to-Channel) ΔV

ΔPhase Phase Match (Channel-to-Channel) V

4V/V Gain Filter Gain in 4V/V Confi guration

TC Filter Cut-Off Frequency Temperature

f

O

Noise Integrated Output Noise

e

n

i

n

HD2 2nd Harmonic Distortion

HD3 3rd Harmonic Distortion

Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.

Note 2: All pins are protected by steering diodes to either supply. If any
pin is driven beyond the LTC6605-10’s supply voltage, the excess input
current (current in excess of what it takes to drive that pin to the supply
rail) should be limited to less than 10mA.

Note 3: A heat sink may be required to keep the junction temperature
below the Absolute Maximum Rating when the output is shorted
indefi nitely. Long-term application of output currents in excess of the
Absolute Maximum Ratings may impair the life of the device.

Note 4: Both the LTC6605C and the LTC6605I are guaranteed functional
over the operating temperature range –40°C to 85°C.

is defi ned as (V

INCM

+IN

+ V

–IN

)/2. V

OUTDIFF

Inputs at ±IN1 Pins, ±IN4 Pins Floating
Channel Separation V

Coeffi cient

(BW = 10kHz to 20MHz)
Input Referred Noise Density (f = 1MHz) BIAS = V

Voltage Noise Density Referred to
Op Amp Inputs (f = 1MHz)

Current Noise Density Referred to
Op Amp Inputs (f = 1MHz)

f

= 5MHz; VIN = 2V

IN

f

= 5MHz; VIN = 2V

IN

Single-Ended

P-P

Single-Ended

P-P

is defi ned as (V

= ±0.125V, DC

IN

V

= 0.5V

INDIFF

V

INDIFF

V

INDIFF

V

INDIFF

V

INDIFF

= ±0.125V, DC

IN

V

INDIFF

V

INDIFF

V

INDIFF

= ±0.125V, DC

IN

V

INDIFF

V

INDIFF

V

INDIFF

INDIFF

V

INDIFF

V

INDIFF

ΔVIN = ±0.125V, DC

INDIFF

BIAS = V
BIAS = Floating

Figure 4, Gain = 1
Figure 4, Gain = 4
Figure 4, Gain = 5

BIAS = V
BIAS = Floating

BIAS = V
BIAS = Floating

BIAS = V
BIAS = Floating, R

BIAS = V
BIAS = Floating, R

= 0.5V
= 0.5V
= 0.5V
= 0.5V

= 0.5V
= 0.5V
= 0.5V

= 0.5V
= 0.5V
= 0.5V

= 0.5V
= 0.5V
= 0.5V

= 1V

+

+

+

+

+

+

P-P
P-P
P-P
P-P
P-P

P-P
P-P
P-P

P-P
P-P
P-P

P-P
P-P
P-P

P-P

– V

+OUT

, f = 5MHz
, f = 7.5MHz
, f = 10MHz
, f = 20MHz
, f = 50MHz

, f = 5MHz
, f = 7.5MHz
, f = 10MHz

, f = 5MHz
, f = 7.5MHz
, f = 10MHz

, f = 5MHz
, f = 7.5MHz
, f = 10MHz

, f = 5MHz –96 dB

= 400Ω

LOAD

= 400Ω

LOAD

Note 5: The LTC6605C is guaranteed to meet specifi ed performance
from 0°C to 70°C. The LTC6605C is designed, characterized and
expected to meet specifi ed performance from –40°C to 85°C, but is
not tested or QA sampled at these temperatures. The LTC6605I is
guaranteed to meet specifi ed performance from –40°C to 85°C.

Note 6: Output referred voltage offset is a function of gain. To determine
output referred voltage offset, or output voltage offset drift, multiply V
by the noise gain (1 + GAIN). See Figure 3.

Note 7: Input bias current is defi ned as the average of the currents
fl owing into the noninverting and inverting inputs of the internal amplifi er
and is calculated from measurements made at the pins of the IC. Input
offset current is defi ned as the difference of the currents fl owing into
the noninverting and inverting inputs of the internal amplifi er and is
calculated from measurements made at the pins of the IC.

INCM

–OUT

). V

= V

OCM

is defi ned as (V

INDIFF

= mid-supply, V

OUTCM

l

–0.25

l

–1.1

l

–2.35

l

–4.05

l

–11.75

l

–28

l

–0.2

l

–0.2

l

–0.3

l

–0.35

l

–1.1

l

–1.2

l

–1.2

l

11.85 12 12. 25 dB

= V+, unless

BIAS

is defi ned as (V

+ V

+IN

).

–IN

±0.05
–0.77

–1.89

–3.5
–11.1
–25.8

0.25
–0.4

–1.45

–3

–10.55

–24.8

0
–42.5
–63.2

–81.7

±0.05
±0.05
±0.05
±0.05

±0.2
±0.2
±0.2

0.2

0.2

0.3

0.35

1.1

1.2

1.2

–80

–260

69 μV

20

5

4

2.1

2.6
3

2.1

–90

–75

–106

–82

+OUT

+

dB
dB
dB
dB
dB
dB

Deg
Deg
Deg
Deg

dB
dB
dB
dB

Deg
Deg
Deg

ppm/°C
ppm/°C

RMS

nV/√Hz
nV/√Hz
nV/√Hz

nV/√Hz
nV/√Hz

pA/√Hz
pA/√Hz

dBc
dBc

dBc
dBc

OS

660510f

4

ELECTRICAL CHARACTERISTICS

LTC6605-10

Note 8: See the Applications Information section for a detailed
discussion of input and output common mode range. Input common
mode range is tested by measuring the differential DC gain with V
= mid-supply, and again with V

at the input common mode range

INCM

limits listed in the Electrical Characteristics table, with ΔV

= ±0.25V,

IN

INCM

verifying that the differential gain has not deviated from the mid-supply
common mode input case by more than 0.5%, and that the common
mode offset (V

) has not deviated from the mid-supply common

OSCM

mode offset by more than ±10mV.
Output common mode range is tested by measuring the differential

DC gain with V

pin at the output common range limits listed in the Electrical

V

OCM

= mid-supply, and again with voltage set on the

OCM

Characteristics table verifying that the differential gain has not
deviated from the mid-supply common mode input case by more than

0.5%, and that the common mode offset (V
more than ±10mV from the mid-supply case.

Note 9: CMRR is defi ned as the ratio of the change in the input common
mode voltage at the internal amplifi er inputs to the change in differential
input referred voltage offset (V

Note 10: Power supply rejection ratio (PSRR) is defi ned as the ratio of
the change in supply voltage to the change in differential input referred
voltage offset (V

TYPICAL PERFORMANCE CHARACTERISTICS

Supply Current vs Temperature Filter Gain vs Temperature

37.5

35.0

32.5

30.0

27.5

25.0

22.5

20.0

SUPPLY CURRENT (mA)

17.5

15.0

12.5
–60

–40 0

–20

TEMPERATURE (°C)

VS = 2.7V, BIAS = FLOAT

= 3V, BIAS = FLOAT

V

S

= 5V, BIAS = FLOAT

V

S

= 2.7V, BIAS = V

V

S

VS = 3V, BIAS = V
VS = 5V, BIAS = V

V

= V

OCM

20

= MID-SUPPLY

40

INCM

+
+
+

80

60

100

660510 G01

1.010

1.005

1.000

GAIN (V/V)

0.995

0.990
–60

).

OS

VS = 3V, BIAS = V
V

= V

INCM

5 RANDOM UNITS

–40 0

= MID-SUPPLY

OCM

–20

TEMPERATURE (°C)

) has not deviated by

OSCM

).

OS

+

80

20

60

40

100

660510 G02

–3dB Frequency vs Temperature

2.5

2.0

1.5

(%)

1.0

–3dB

0.5

0

–0.5

–1.0

–1.5

FREQUENCY SHIFT OF f

–2.0

–2.5

–60

–40 0

BIAS = FLOAT
BIAS = V

–20

TEMPERATURE (°C)

VS = 3V
V

INCM

+

20

Filter Frequency Response

0

= V

= 1.5V

OCM

80

60

40

100

660510 G03

–10

–20

–30

0.1

VS = 3V
V

INCM

BIAS = V
BIAS PIN FLOATING

= V

OCM

FREQUENCY (MHz)

GAIN MAGNITUDE (dB)

–40

–50

+

= MID SUPPLY

101.0 100 1000

660514 G04

660510f

5

LTC6605-10

TYPICAL PERFORMANCE CHARACTERISTICS

Harmonic Distortion
vs Frequency, BIAS High

–40

–50

–60

–70

–80

–90

DISTORTION (dBc)
–100

–110

–120

DIFFERENTIAL INPUTS, HD2
DIFFERENTIAL INPUTS, HD3
SINGLE-ENDED INPUTS, HD2
SINGLE-ENDED INPUTS, HD3

1

VIN = 2V

P-P,VS

= 400Ω DIFFERENTIAL, GAIN = 1V/ V

R

L

10 100

FREQUENCY (MHz)

= 3V

Harmonic Distortion vs Input
Common Mode Voltage (VS = 3V)

–40

–50

–60

–70

–80

–90

–100

DISTORTION (dBc)

–110

–120

–130

–0.5

01

INPUT COMMON MODE VOLTAGE (V)

VIN = 2V
BIAS = 3V, f = 3MHz

= 400Ω DIFFERENTIAL, GAIN = 1V/ V

R

L

DIFFERENTIAL INPUTS, HD2
DIFFERENTIAL INPUTS, HD3
SINGLE-ENDED INPUT, HD2
SINGLE-ENDED INPUT, HD3

0.5

= 1.5V

P-P,VOCM

1.5

2 2.5

660510 G05

660510 G08

–40

–50

–60

–70

–80

–90

DISTORTION (dBc)

–100

–110

–120

3

Harmonic Distortion
vs Frequency, BIAS Floating

–40

–50

–60

–70

–80

–90

DISTORTION (dBc)

–100

–110

–120

DIFFERENTIAL INPUTS, HD2
DIFFERENTIAL INPUTS, HD3
SINGLE-ENDED INPUTS, HD2
SINGLE-ENDED
INPUTS, HD3

1 10 100

VIN = 2V

= 400Ω DIFFERENTIAL, GAIN = 1V/ V

R

L

FREQUENCY (MHz)

= 3V

P-P,VS

Harmonic Distortion vs Input

3.53

= 5V)

S

Common Mode Voltage (V

DIFFERENTIAL
INPUTS, HD2
DIFFERENTIAL
INPUTS, HD3
SINGLE-ENDED
INPUT, HD2
SINGLE-ENDED
INPUT, HD3

0–0.5

0.5 2.52

P-P,VOCM

1.51

= 2.5V

INPUT COMMON MODE VOLTAGE (V)

VIN = 2V
BIAS = 5V, f = 3MHz

= 400Ω DIFFERENTIAL, GAIN = 1V/ V

R

L

4.5 54

660510 G09

660510 G06

Harmonic Distortion
vs Input Amplitude

–40

DIFFERENTIAL INPUTS, HD2
DIFFERENTIAL INPUTS, HD3

–50

SINGLE-ENDED
INPUTS, HD2

–60

SINGLE-ENDED
INPUTS, HD3

–70

–80

–90

DISTORTION (dBc)

–100

–110

–120

0

13

VS = 3V, BIAS TIED TO V+,V

= 400Ω, fIN = 3MHz, GAIN = 1V/ V

R

LOAD

Differential Output Noise
vs Frequency

1000

NOISE SPECTRAL DENSITY (nV/√Hz)

100

10

1

0.01

VS = 3V
BIAS TIED TO V

+

OUTPUT NOISE
SPECTRAL DENSITY
INTEGRATED OUTPUT
NOISE

0.1 1 10010
FREQUENCY (MHz)

OCM

5

660510 G07

= 1.5V

100

10

1

6

INTEGRATED NOISE (μV

RMS

)

2

V

IN

4

(V

)

P-P

= V

INCM

660510 G10

6

Channel Separation vs Frequency Overdrive Transient Response

–20

–30

–40

–50

–60

–70

–80

–90

CHANNEL SEPARATION (dB)

–100

–110

–120

0.1 10 100 1000

V

= 1V

IN

= 400Ω DIFFERENTIAL

R

L

+

BIAS = V
BIAS = FLOAT

1

FREQUENCY (MHz)

= 3V

P-P,VS

660510 G11

2.0

1.5

1.0

0.5

0

VOLTAGE (V)

–0.5

–1.0

–1.5

–2.0

VS = 3V, V
BIAS = 3V, R

OCM

= 1.5V

LOAD

50ns/DIV

= 400Ω

+OUT
–OUT
–IN4
+IN4

660510 G12

660510f

TEST CIRCUITS

LTC6605-10

LTC6605-10

400Ω

1

+

V

INP

100Ω

2

400Ω

125Ω

–

3

BIASBIAS

–

V

INM

+

100Ω

4

400Ω

5

125Ω

400Ω

81.5pF

48.2pF

+

–

48.2pF

81.5pF

25Ω

V

–OUT

22

21

0.1μF

–

20

+

+

V

36k

19

36k

–

V

18

660510 TC01

V

0.01μF

+OUT

+

V

0.1μF

–

V

0.1μF

V

OCM

25Ω

I

L

R

BAL

V

OUTCM

R

BAL

I

L

Figure 1. DC Test Circuit (Channel A Shown)

LTC6605-10

1μF

V

+IN

400Ω

1

100Ω

2

400Ω

125Ω

+

V

IN

3

BIASBIAS

–

1μF

100Ω

4

V

–IN

400Ω

5

125Ω

400Ω

81.5pF

48.2pF

+

–

48.2pF

81.5pF

V

–OUT

22

21

0.1μF

–

20

+

+

V

36k

19

36k

–

V

18

660510 TC02

V

0.01μF

+OUT

100Ω

V

OCM

100Ω

1μF

+

V

0.1μF

–

V

0.1μF

1μF

COILCRAFT
TTWB-4-B

50Ω

Figure 2. AC Test Circuit (Channel A Shown)

660510f

7