SR B232

Ultra Low Noise SAW Oscillator @ 320 MHz

Specifications Rev. A2

July, 2009

TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.

3

S A W

P r o d u c t s

Technical Characteristics

Block diagram

Frequency

Output

Voltage

Control

SR B232

DC Supply

voltage

Ground

Vc

0/Vc

Case

Oven

PS

BPF

Phase

shifter

SAW Res.

Electrical specifications

Electrical parameter

Test conditions

Unit

Min.

Typical

Max.

Frequency output

Pin 3, 50

Ω

Ω

Ω

Ω load

Nominal frequency = Fn

Definition

MHz

320

Output level

Pin 4 NC

dBm

11.5

12.5

13.5

Harmonics suppression

Second & third harmonics

dBc

- 30

Phase noise @ 1 kHz offset

dBc/Hz

- 145

- 142

Phase noise @ 10 kHz offset

dBc/Hz

- 170

- 167

Phase noise @ 100 kHz offset

dBc/Hz

- 175

- 172

Phase noise floor

Two SRB232 as DUT & reference,

phase noise is the sum of both

oscillators

Test bench: Aeroflex PN9000

(noise floor limited to -175 dBc/Hz)

dBc/Hz

- 178

- 175

VSWR

320 MHz+/- 10 MHz

-

2:1

Free running mode

Pin 4 NC

Factory set accuracy

@ 25 °C

ppm

±±±± 0.1

±±±± 0.5

Temperature stability

Referenced to Fn

ppm

±±±± 2

Aging per year

After 30 days continuous operation

ppm

±±±± 1

Electrical tuning

Pin 4, 0

Ω

Ω

Ω

Ω source

Voltage range

V

2

7

Relative tuning range

Referenced to Fn

ppm

±±±± 4

Slope

Within tuning range

ppm / V

+1.5

+2

+3

Supply voltage

Pin 2

Voltage range

11.8

12

12.2

Power supply ripple

Within [1 kHz to 5 MHz]

mVpp

10

Supply current

Warm-up

mA

700

Supply current

@ + 25°C after warm-up time

mA

270

3 50

Warm up time

frequency accuracy < 4 ppm

mn

4

5