Datasheet CGA-3318 Datasheet (STANF)

Preliminary

Preliminary

Product Description

CGA-3318

Stanford Microdevices CGA-3318 is a high performance
Silicon Germanium HBT MMIC Amplifier. Designed with SiGe
process technology for excellent linearity at an exceptional
price. A Darlington configuration is utilized for broadband
performance. The heterojunction increases breakdown
voltage and minimizes leakage current between junctions.
The amplifier contains two amplifiers for use in wideband
Push-Pull CATV amplifiers requiring excellent second order
performance. The second and third order non-linearities are
greatly improved in the push pull configuration.

Amplifier Configuration

1
2
3
4

8
7
6
5

Key 75 Ohm Parameters at Room Temperature 50-860MHz CATV Band Data

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S

l

SAIB

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3PItuptuO

Bd1PtuptuO

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ssoLnruteRtuptuO

erugiFesioN

OSCVmBd43+,talF,.hC97dnaBrevOesaCtsroW cBd07

BTCVmBd43+,talF,.hC97dnaBrevOesaCtsroW cBd86

DOMXVmBd43+,talF,.hC97dnaBrevOesaCtsroW cBd36

dV V3.4

zHM1=gnicapsenoT

mBd6+=enoT/tuoP

zHM1=gnicapsenoT

mBd6+=enoT/tuoP

secived3foegarevA

Note: Measured in Push-Pull Application test board

The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.
Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the users own risk. Prices and specifications are
subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not
authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systems.
Copyright 2001 Stanford Microdevices, Inc. All worldwide rights reserved.

726 Palomar Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.stanfordmicro.com

RV0.8=

SAIB

ZAm051=

SZ=L

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Dual CATV Broadband High
Linearity SiGe HBT Amplifier

Product Features



Excellent CSO/CTB/XMOD Performance at
+34 dBmV Output Power per Tone

 Dual Devices in each SOIC-8 Package simplify

Push-Pull configuration PC board layout

 Operates from a single supply
 Dropping Resistor provides

Temperature Compensation

Applications

 CATV Head End Driver and Predriver Amplifier
 CATV Line Driver Amplifier

TsmhO15=

Cº52=

L

smhO57=

.qerF stinU .niM .pyT .xaM

zHM05

zHM005
zHM068

zHM05

zHM005
zHM068

zHM05

zHM005
zHM068

zHM05

zHM005
zHM068

zHM05

zHM005
zHM068

zHM05

zHM005
zHM068

zHM05

zHM005
zHM068

Bd

mBd

mBd

mBd

Bd

Bd

Bd

5.21

5.21

9.11

07
86
37

5.63

0.83

0.83

0.02

0.12

6.02

51
02
41

01
41
91

2.4

3.4

8.4

EDS-101993 Rev B

Preliminary

CGA-3318 Dual SiGe HBT Amplifier

Typical S-Parameters @ V

Output Return Loss vs. Frequency

0 200 400 600 800 1000

S22 (dB)

-5

-8

-11

-14

-17

-20

=8V, ID=150mA, R

S

15

13

11

9

S21 (dB)

7

5

0 200 400 600 800 1000

Frequency (MHz)

-40C
25C
85C

=51 Ohms, TL=+25°C

BIAS

Gain vs. Frequency

Frequency (MHz)

-5

-10

-15

-20

S11 (dB)

-25

-30

-40C
25C
85C

Input Return Loss vs. Frequency

-40C
25C
85C

0 200 400 600 800 1000

Frequency (MHz)

Absolute Maximum Ratings

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T(.pmeTnoitcnuJ.xaM

)Cº051+

J

T(egnaR.pmeTgnitarepO

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L

.pmeTegarotS.xaMCº051+

stimilesehtfoynadnoyebecivedsihtfonoitarepO

.egamadtnenamrepesuacyam

Bias Conditions should also satisfy the following
expression: IDVD (max) < (TJ - TL)/Rth,j-l

726 Palomar Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.stanfordmicro.com

2

EDS-101993 Rev B

Preliminary

CGA-3318 Dual SiGe HBT Amplifier

Typical RF Performance @ VS=8V, ID=150mA, R

50
45
40
35
30

IP3 (dBm)

25
20

0 0.2 0.4 0.6 0.8 1

100

90
80
70
60
50

IM2 (dBc)

40
30
20

0 3 6 9 12 15

IP3 vs. Temperature

-40 C
25C
85C

Frequency (MHz)

Second Harmonic vs. Pout and Freq.

Data shown is typical at 25C

66MHz
100MHz
250MHz
500MHz

Pout (dBm)

=51 Ohms, TL=+25°C

BIAS

80

IP2 vs. Temperature

75
70
65
60

IP2 (dBm)

55

-40C
25C
85C

50

0 0.2 0.4 0 .6 0.8 1

Frequency (MHz)

Third Harmonic vs. Pout and Freq.

Data shown is typical at 25C

100

90
80
70
60
50

IM3 (dBc)

40
30

66MHz
100MHz
250MHz
500MHz

20

03691215

Pout (dBm)

Push-Pull CGA-3318 Noise Figure

6
5
4
3
2

NF (dB)

1
0

50MHz-900MHz, Typical

110
100

90
80
70

dBc

60
50
40

0 200 400 600 800 1000

Frequency (MHz)

726 Palomar Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.stanfordmicro.com

3

Push-Pull CGA-3318 CTB/CSO/XMOD

34 dBmV/Ch., 79 Ch.,Flat

CTB CSO­CSO+ Xmod

0 100 200 300 400 500 600

Frequency (MHz)

EDS-101993 Rev B

CGA-3318 Dual SiGe HBT Amplifier

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1

3,2

4

5

7,6

8

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1

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2

3

4

Preliminary

8

7

6

5

Basic Application Schematic 50-860 MHz

Vs

0.01µF 1000pF 68pF

1µF Tant.

1

Macom

1000 pF

ETC1-1-13

1000 pF

1µF Tant. 0.01µF 1000pF 68pF

V(egatloVylppuS

)V8V9V21V51

S

R

SAIB

R

SAIB

gnitaRrewoPW8/1W2/1W2/1W1

R

Amp 1

4

Amp 2

CGA-3318

SOIC-08

1526001051

2(VS-VD)

=

BIAS

RBIAS

220 nH

8

1000 pF

6,72,3

Macom

1000 pF

220 nH

RBIAS

Vs

IrofseulaVrotsiseRsaiBdednemmoceR

D

ETC1-1-13

Am051=

5

I

D

Evalution Board Layout 50-860 MHz

Rbias

1uF Tant.

RF INPUT

Balun ETC1-1-13

1000pF

1000pF

Rbias

Recommended Land Pattern

.15 [3.81]

.24 [6.22]

.05 [1.27]

220nH

220nH

1uF Tant .

.02 [.60]

.01uF
1000pF
68pF

Balun ETC1-1-13

1000pF

1000pF

68pF
1000pF
.01uF

ECB-101611 Rev A
ESOP-8
Push-Pull
Eval Board

.16 [4.02]

.11 [2.71]

RF OUTPUT

.33 [8.42]

726 Palomar Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.stanfordmicro.com

4

EDS-101993 Rev B

CGA-3318 Dual SiGe HBT Amplifier

Package Outline Drawing

Preliminary

.050

[1.27]

TOP VIEW

678

Date Code

CGA
3318

1

SIDE VIEW

32

.035 [.889]

.045 [1.143]

.194

[4.928]

5

.155 [3.937]

4

.016 [.406]

.

.003

[.076]

PARTING LINE

0

6

.061

[1.549]

1

1

[

.

.236 [5.994]

4

9

]

5

0

0

.

8

.

[

2

E

S

A

BOTTOM VIEW

.078 [1.969]

EXPOSED
PAD

.194 [4.93]

.013 [.33] x

]

4

7

3

[

1

.

.

0

5

8

0

3

]

T

I

N

G

L

P

A

N

E

E

S

E

D

T

E

A

45°

.

0

0

8

.155

[3.937]

I

L

A

E

N

D

I

V

W

E

DETAIL A

.025

5°

Part Number Ordering Information

Caution: ESD sensitive

Appropriate precautions in handling, packaging
and testing devices must be observed.

Note: Parts need to be baked prior to use as discussed in application note EAN-101472 (Special handling information
for Exposed Pad

TM

SOIC-8 products) to ensure no moisture is trapped in the encapsulated package. In production,

rebmuNtraP leeRrePseciveD eziSleeR

8133-AGC005"7

this baking procedure is not necessary if parts are used within 24 hours of opening the sealed shipping materials.

726 Palomar Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.stanfordmicro.com

5

EDS-101993 Rev B