A D S A N T E C

A d v a n c e dS c ie n c ea n dN o v e l
T e c h n o lo g y

27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

Ph. # 1-310-377-6029.

Fax # 1-310-377-9940.

ASNT5078/5178-PQC
15GHz Phase Shifter with Output Signal Amplitude Control•

100 MHz of bandwidth for the phase adjustment tuning ports.

•

100 MHz of bandwidth for the amplitude adjustment tuning ports.

•Ideal for high speed proof-of-concept prototyping.

•Fully differential input and output buffers with on-chip 50Ω termination.

•Single ±3.0V power supply.

•Power consumption: 1.15 W.

•Fabricated in SiGe for high performance, yield, and reliability.

•Standard MLF/QFN 24-pin package.

VCCExhibits low jitter and limited temperature variation over industrial temperature range.

TNN

•

VCC

Output signal amplitude adjustment from 0.2V to 0.9 V single ended.

TNP

•

VCC

Narrowband (11GHz-15GHz) tunable clock phase shifter with 140 ps of delay adjustment.

VEE•

18 17 16 15 14 13VCC

1912VEEINP

2011VCC

VCC2110OUTP

INN

229VCCVCC

238OUTNVEE

247VCC

Rev.: 4, October 2008.

123456VCC

ICNTP

VCC

ICNTN

VCC

VEE

ASNT5078

ASNT5078-PQC (Old # 5178)

A D S A N T E C

A d v a n c e d
S c ie n c ea n d
N o v e l
T e c h n o lo g y

27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

Ph. # 1-310-377-6029.

Fax # 1-310-377-9940.

DESCRIPTION
The temperature stable ASNT5078-PQC SiGe IC provides extremely low jitter narrowband
signal phase shifting and amplitude control capability between its input and output signal ports
and is intended for use in high-speed measurement / test equipment. ASNT5078-PQC canprocess an up to 15GHz RF clock signal and deliver both 0-140 ps of adjustable phase delay andoutput signal amplitudes between 0.2V-0.9 V through two external adjustment differential tuningports. The part’s I/Os support the CML logic interface with on chip 50Ω termination and may be
used differentially, AC/DC coupled, single-ended, or in any combination. It operates from asingle ±3.0V power supply.

FUNCTIONAL BLOCK DIAGRAM

Tp

Icntp
100505050140ps
TunablePhase Shift

Inputp
Inputn50100Outp
Outn
5050Icntn

Tn

TERMINAL FUNCTIONSTERMINAL
NAME
(NO.)
vcc
1,3,5,7,9,11
13,15,17,19,21,23
vee
6,12,18,24
inp
20
inn
22
outp
10
outn
8
icntp
2
icntn
4
tnp
16
tnn
14

Rev.: 4, October 2008.

TYPE

DESCRIPTION

PS

Power Supply: 3.0V / 0V

PS
Input

Power Supply: 0V / -3.0V
Differential CML high-speed signal inputs

OutputDifferential CML high-speed signal outputs

Input

Differential low-speed phase adjustment tuning inputs

Input

Differential low-speed amplitude adjustment tuning inputs

ASNT5078-PQC (Old # 5178)

A D S A N T E C

A d v a n c e d
S c ie n c ea n d
N o v e l
T e c h n o lo g y

27 Via Porto Grande, Rancho Palos Verdes, CA, 90275.

Ph. # 1-310-377-6029.

Fax # 1-310-377-9940.

ELECTRICAL CHARACTERISTICSPARAMETERMIN TYP MAX-2.85
0.0 / -3.0-3.15
VEE
2.85
3.0 / 0.0
3.15
VCCIEE*
385Power*
1.15-2550
125
Junction Temp.
Input (in)Frequency
DC15CM Level
Vcc-0.8 Vcc-0.2 Vcc
Swing (Diff or SE)
50400
1000
Output (out)Frequency
DC15
CM Level*
Vcc-0.3 Vcc-0.25 Vcc-0.2
SE Swing*
475 500
525
Amplitude Variation
200 500 900
Rise/Fall Times*
131517
Additive Jitter
TBD
Duty Cycle
45% 50% 55%
Tuning Port (icnt)
Diff. Swing-1,00 V0CM Level
Vcc-1 Vcc-0.5Vcc
Phase Shift0140
Shift Stability-1212Bandwidth0.0200
Tuning Port (tn)
Diff. Swing-500
500
CM Level
Vcc-0.5 Vcc-0.25
Vcc
Bandwidth0.0200* Tn pins are not connected (N/C)

UNIT
VV
mA
W°C
GHz
V
mV
GHz
V
mV
mV
ps
ps

COMMENTS±6%±6%

Peak-to-Peak

Peak-to-Peak
20%-80%Peak-to-Peak

mVV
ps
ps
MHz

Peak-to-Peak

mV
V
MHz

Peak-to-Peak

0-125°C

PACKAGE INFORMATIONThe chip is packaged in a standard 24-pin QFN package. The package’s mechanical information
is available on the company’s website.

Rev.: 4, October 2008.

ASNT5078-PQC (Old # 5178)