SA572N datasheet(3/12 Pages) PHILIPS

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Philips Semiconductors

Product specification

SA572

Programmable analog compandor

1998 Nov 03

BLOCK DIAGRAM

(7,9)

(6,10)

(3,13)

(16)

(8)

(4,12)

(2,14)

(1,15)

(5,11)

GAIN CELL

RECTIFIER

P.S.

6.8k

10k

BUFFER

10k

270

500

Ω

∆G

–

SR00695

Figure 2. Block Diagram

DC ELECTRICAL CHARACTERISTICS

Standard test conditions (unless otherwise noted) VCC=15V, TA=25°C; Expandor mode (see Test Circuit).

Input signals at unity gain level (0dB) = 100mVRMS at 1kHz; V1 = V2; R2 = 3.3kΩ; R3 = 17.3kΩ.

SYMBOL

PARAMETER

TEST CONDITIONS

SA572

UNIT

SYMBOL

PARAMETER

TEST CONDITIONS

Min

Typ

Max

UNIT

VCC

Supply voltage

VDC

ICC

Supply current

No signal

6.3

Internal voltage reference

2.3

2.5

2.7

VDC

THD

Total harmonic distortion (untrimmed)

1kHz CA=1.0µF

0.2

1.0

THD

Total harmonic distortion (trimmed)

1kHz CR=10µF

0.05

THD

Total harmonic distortion (trimmed)

100Hz

0.25

No signal output noise

Input to V1 and V2 grounded (20–20kHz)

µV

DC level shift (untrimmed)

Input change from no signal to 100mVRMS

±20

±50

Unity gain level

–1.5

+1.5

Large-signal distortion

V1=V2=400mV

0.7

Tracking error

Rectifier input

(measured relative to value at unity

i) [V

V (

i )]dB V dB

V2=+6dB V1=0dB

±0.2

gain)= [VO–VO (unity gain)]dB –V2dB

V2=–30dB V1=0dB

±0.5

–2.5, +1.6

Channel crosstalk

200mVRMS into channel A,

measured output on channel B

PSRR

Power supply rejection ratio

120Hz

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