TDA2546A datasheet, PDF - EEWORLD Datasheet

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TDA2546A: DescriptionIC FM, AUDIO DEMODULATOR, PDIP18, 0.300 INCH, PLASTIC, DIP-18, Receiver IC; CategoryAnalog mixed-signal IC Consumption circuit; File Size87KB，10 Pages; ManufacturerNXP; Websitehttps://www.nxp.com

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TDA2546A Overview

IC FM, AUDIO DEMODULATOR, PDIP18, 0.300 INCH, PLASTIC, DIP-18, Receiver IC

TDA2546A Parametric

Parameter Name	Attribute value
Maker	NXP
Parts packaging code	DIP
package instruction	DIP,
Contacts	18
Reach Compliance Code	unknown
Commercial integrated circuit types	AUDIO DEMODULATOR
Demodulation type	FM
harmonic distortion	1%
JESD-30 code	R-PDIP-T18
length	21.6 mm
Number of functions	1
Number of terminals	18
Maximum operating temperature	70 °C
Minimum operating temperature
Nominal output voltage (FM)	600 mV
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Certification status	Not Qualified
Maximum seat height	4.7 mm
Maximum slew rate	75 mA
Maximum supply voltage (Vsup)	13.2 V
Minimum supply voltage (Vsup)	10.8 V
surface mount	NO
Temperature level	COMMERCIAL
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
width	7.62 mm

TDA2546A Preview

INTEGRATED CIRCUITS

DATA SHEET

TDA2546A

Quasi-split-sound circuit

with 5,5 MHz demodulation

Product speciﬁcation

File under Integrated Circuits, IC02

February 1985

Philips Semiconductors

Product speciﬁcation

Quasi-split-sound circuit

with 5,5 MHz demodulation

GENERAL DESCRIPTION

TDA2546A

The TDA2546A is a monolithic integrated circuit for quasi-split-sound processing, including 5,5 MHz demodulation, in

television receivers.

Features

1st i.f. (V.C.: vision carrier plus S.C.: sound carrier)

•

3-stage gain controlled i.f. amplifier

•

A.G.C. circuit

•

Reference amplifier and limiter amplifier for vision carrier (V.C.) processing

•

Linear multiplier for quadrature demodulation

2nd i.f. (5,5 MHz signal)

•

8-stage limiter amplifier

•

Quadrature demodulator

•

A.F. amplifier with de-emphasis

•

AV switch

QUICK REFERENCE DATA

Supply voltage (pin 15)

Supply current (pin 15)

Minimum i.f. vision carrier input voltage (r.m.s. value)

Output voltage; 5,5 MHz (r.m.s. value)

Output voltage; 5,742 MHz (r.m.s. value)

I.F. control range

Signal-to-weighted-noise ratio (rel. to 1 kHz; 30 kHz deviation)

at 5,5 MHz

for 2T/20T pulses with white bars

at 5,742 MHz

A.F. output voltage (r.m.s. value)

PACKAGE OUTLINES

18-lead DIL; plastic (SOT 102); SOT102-1; 1996 November 19.

W/W

o6-16(rms)

typ.

0,6

W/W

typ.

= V

15-16

= I

VC1-18 (rms)

14-16(rms)

∆G

typ.

150

100

µV

February 1985

Philips Semiconductors

Product speciﬁcation

Quasi-split-sound circuit

with 5,5 MHz demodulation

TDA2546A

February 1985

(1) I.F. signal: vision carrier (V.C.) and sound carrier (S.C.)

Fig.1 Block diagram.

Philips Semiconductors

Product speciﬁcation

Quasi-split-sound circuit

with 5,5 MHz demodulation

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

Supply voltage (pin 15)

Input current (pin 4)

Storage temperature range

Operating ambient temperature range

15-16

stg

amb

TDA2546A

max. 13,2

max. 7

−25

+150

0 to

+70

°C

February 1985

Philips Semiconductors

Product speciﬁcation

Quasi-split-sound circuit

with 5,5 MHz demodulation

TDA2546A

CHARACTERISTICS

= V

15-16

= 12 V; T

amb

= 25

°C;

measured at f

= 38,9 MHz, f

SC1

= 33,4 MHz, f

SC2

= 33,158 MHz:

Vision carrier (V.C.) modulated with different video signals (see below); modulation depth 100% (proportional to 10%

residual carrier).

Vision carrier amplitude (r.m.s. value) is V

= 10 mV.

Vision-to-sound carrier ratios are VC/SC1 = 13 dB and VC/SC2

20 dB.

Sound carriers (SC1, SC2) modulated with f = 1 kHz and deviation

∆f

30 kHz.

For measuring circuit see Fig.2; unless otherwise speciﬁed.

PARAMETER

Supply (pin 15)

Supply voltage

Supply current

I.F. ampliﬁer

Input voltage for start of gain control

(intercarrier signals

−3

dB)

Input voltage for end of gain control

(intercarrier signals

1 dB)

I.F. gain control range

Control voltage range (see Fig.3)

Input resistance

Input capacitance

Intercarrier generation

Output voltage; 5,5 MHz (r.m.s. value)

Output voltage; 5,742 MHz (r.m.s. value)

D.C. output voltage

Allowable d.c. load resistance at the output

Allowable output current

Frequency demodulator

(measured at f = 5,5 MHz)

Input voltage vor start of limiting (r.m.s. value)

Maximum input voltage (r.m.s. value)

D.C. output voltage

A.F. output voltage (r.m.s. value)

D.C. output voltage

Allowable d.c. load resistance at the output

Allowable a.c. load impedance at the output

Total harmonic distortion

Internal de-emphasis resistance

Switching voltage (pin 4)

for mute

for a.f. on

4-16

−

2,5

12-16(rms)

12-16 (rms)

11,12,13-16

6-16(rms)

6-16

THD

i5-16

−

450

−

200

2,2

600

−

100

−

810

−

µV

kΩ

14-16(rms)

14-16

−I

−

100

5,9

−

140

−

VC1-18 (rms)

∆G

3-16

1-18

100

−

250

−

2,5

1,5

−

kΩ

VC1-18(rms)

−

150

200

µV

= V

15-16

= I

10,8

13,2

SYMBOL

MIN.

TYP.

MAX.

UNIT

February 1985

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