PULSE DETECTOR AND SERVO DEMODULATOR CHARACTERISTICS

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Gain Sensititivity with respect to

DATA BYP or SERVO BYPS

pin voltage changes

27

28

dB/V

AGC OUT/

AGC OUT

THD

AGCOUT - AGCOUT = 0.75Vpp

40

–

–

dB

Differential Input Impedance

WG = low

4.7

6

8.4

K

Ω

Single Ended Input Impedance

WG = low

WG = High or when IN Low - Z

mode

2.5

3.5

0.65

4.5

0.8

K

Ω

K

Ω

VOO

Output Offset Voltage

Filter not connected

– 200

–

+200

mV

en

Input Noise Voltage

AGC OUT, Rs = 0

Ω, gain = 22

–

10

15

nV/

√

Hz

BW

Bandwidth

50

–

–

MHz

AGC OUT/

AGC OUT

Single ended output resistance

140

180

Ω

PSRR

Power Supply Rejection Ratio

gain = 22, Fin = 5MHz

45

dB

CMRR

Common Mode Rejection Ratio

40

–

–

dB

Gain Decay Time

AGC IN-AGC IN = 240mVpp to

120mVpp,

AGC OUT-AGC OUT = 0.9

Final Value

––

53

µs

Gain Attack Time

AGC IN-AGC IN = 120mVpp to

240mVpp,

AGC OUT-AGC OUT = 1.1

Final Value

––2

µs

AGC Control Section

The input signal are AC coupled to DATA PATH and DATA PATH, C = 1000pF.

DATA PATH/

DATA PATH

Signal Input range

(bench test only)

–

1

1.5

Vpp

Id

Discharge Current

2.8

4

5.2

µA

Idf

Fast Discharge

During Fast Decay mode

Current

20xld

–30%

20xld

20xld

+30%

µA

Ich

Charge Pump Attack Current

DATA PATH-DATA PATH =

1.15Vpp

0.126

0.18

0.234

µA

Ichf

Charge Pump Fast Attack

Current

DATA PATH-DATA PATH =

1.45V

7xlch

–30%

7xlch

7xlch

+30%

µA

DATA BYP Pin Leakage Current

WG = high

-0.1

+0.1

µA

LEVEL REF V Reference Voltage

Vcc

PULSE

DET-

2.47

–

Vcc

PULSE

DET-

2.0

V

LEVEL REF V Output Drive

-0.75

–

0.75

mA

Duration of shorted input and

Fast Decay modes

(*)

–1–

µs

Level Output Gain

DATA PATH-DATA PATH = 0.5

to 1Vpp

0.60

0.67

0.75

V/Vpp

Level Output Bandwidth

–

–

2

Level Offset Voltage

Output - LEVEL REF V

µA)

–40

–

+40

(*) Guaranted by design.

(1) For correlation automatic test is performed at –3.8dB.

(2) Test limits under evaluation.

L6000

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