Panasonic AN5819K Datasheet

ICs for TV

AN5819K

Sound multiplex demodulator IC for TV in the North American market

■ Overview

The AN5819K is a single chip IC, which includes a
sound multiplex demodulator for Zenith TV system and
the dbx TV sound noise reduction function.

■ Features

• Stereo demodulation, SAP demodulation and dbx noise

reduction are integrated into a single chip

• Enabling various kinds of adjustment and mode

changeover thanks to I

• Built-in input volume (I

2

C bus

2

C control) for interface with

intermediate frequency processing IC

■ Applications

• TV and VCR for the North American market

(A licensing agreement with THAT Corporation is nec­essary in order to use this IC with built-in dbx-TV noise
reduction function.)

■ Block Diagram

9 V

CC

GND

V

MPX in

11

12

8

Input
VCA

9

21

7

Stereo

filter

SAP
filter

Noise

filter

6

Pilot det. Matrix

St.PLL

L+R

demod.

L−R

demod.

SAP

SAP out

demod.

SAP

noise

det.

V-reg.

I-reg.

13

14

28

27

10

L+R
filter

L−R
filter

filter

de-emph.

(L−R)/SAP

switch

15

17

75 µs

26.7±0.3

3° to 15°

1
2
3
4
5
6
7
8

9
10
11
12
13
14

8.4±0.3

10.16±0.25

SDIP028-P-0400B

L-out

26

25

dbx

de-emph. 2

dbx

wide band

dbx

spectral

dbx

de-emph. 1

16

R-out

28
27
26
25
24
23
22
21
20
19
18
17
16
15

+0.1
–0.05

0.3

Stereo

5

LED

driver

decoder

Wide band

filter

Spectral

filter

4.8±0.25

4

I2C

SAP

Unit: mm

0.5±0.1

1.778

1.05±0.25

3.05±0.25

2

SDA

3

SCL

1

I2C
GND

22

23
20

19
18

24

0.9±0.25

1

AN5819K ICs for T V

■ Pin Descriptions

Pin No. Description

1I

2

C GND
2 SDA
3 SCL
4 SAP LED
5 Stereo LED
6 Pilot signal detection
7 Stereo PLL filter
8V

CC

9 SAP trap filter

10 Quasi sine-wave filter
11 Stereo filter offset cancel
12 Composite input
13 dbx timing current
14 Reference voltage source filter

Pin No. Description

15 (L−R)/SAP demodulation output
16 dbx input
17 (L+R) demodulation output offset cancel
18 Spectral level adjustment
19 Spectral timing
20 Spectral level sensor input
21 GND
22 Wide band level sensor input
23 Wide band timing
24 dbx offset cancel
25 R output
26 L output
27 SAP carrier detection
28 SAP noise level detection

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply voltage V
Supply current I

3

LED drive current
Power dissipation
Operating ambient temperature
Storage temperature

Note)*1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.

2: Power dissipation shown is for the IC package in free air at Ta = 70°C

*

3: LED drive currents are the currents flowing into pin 4 and pin 5.

*

*

2

*

1

*

1

*

I

T

T

CC

CC

LED

P

opr

stg

D

11.0 V
75 mA
10 mA

1 143 mW

−20 to +75 °C

−55 to +150 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Supply voltage V

CC

8.5 to 9.5 V

2

ICs for TV AN5819K

■ Electrical Characteristics at VCC = 9.0 V, Ta = 25°C

• Stereo PLL VCO adjustment: 15.734 kHz ± 50 Hz

• Input level (at 100% modulation)

L+R: 0.424 V[p-p] (pre-emphasis off)
L−R: 0.848 V[p-p] (dbx noise reduction off)
Pilot: 0.084 V[p-p]
SAP: 0.254 V[p-p] (dbx noise reduction off)

Parameter Symbol Conditions Min Typ Max Unit

Total circuit current I
Mono output level V
Mono frequency characteristics-1
Mono frequency characteristics-2
Mono distortion ratio
Mono noise level V
(L), (R) output voltage difference

0(MON)

V

1(MON)

V

2(MON)

THD

N(MON)

V

LR(MON)

Stereo output level V
Stereo frequency characteristics-1
Stereo frequency characteristics-2
Stereo frequency characteristics-3

V
V

V
Stereo distortion ratio THD
Stereo noise level V
Stereo discrimination level V
Stereo discrimination hysteresis V
SAP output level V
SAP frequency characteristics-1 V
SAP frequency characteristics-2 V
SAP distortion ratio
SAP noise level V
SAP discrimination level V
SAP discrimination hysteresis V

N(ST)

TH(ST)

HY(ST)

0(SAP)

1(SAP)

2(SAP)

THD

N(SAP)

TH(SAP)

HY(SAP)

SAP → Stereo crosstalk CT

Stereo → SAP crosstalk CT

Noise discrimination level V
Noise discrimination hysteresis V

TH(NOI)

HY(NOI)

No signal 35 55 75 mA

CC

f = 1 kHz, (mono) 100%mod. 480 530 580
f = 300 Hz, (mono) 30%mod. − 0.5 0 +0.5 dB
f = 8 kHz, (mono) 30%mod. −1.5 − 0.4 +0.4 dB
f = 1 kHz, (mono) 100%mod. 0.7 %

(MON)

Input short-circuit, BPF (A curve) −60 dBV
f = 1 kHz, (mono) 100%mod. − 0.5 0 +0.5 dB
f = 1 kHz, (L(R)-only) 100%mod. 420 520 620

0(ST)

f = 300 Hz, (L(R)-only) 30%mod. − 0.7 0 +0.7 dB

1(ST)

f = 3 kHz, (L(R)-only) 30%mod. −10+1dB

2(ST)

f = 8 kHz, (L(R)-only) 30%mod. −2.5 − 0.5 +1.5 dB

3(ST)

f = 1 kHz, (L(R)-only) 100%mod.  1%

(ST)

f = 15.73 kHz, (fH), V= 0.084 V[p-p], BPF

−60 dBV
f = 15.73 kHz (fH) 9 17 26
f = 15.73 kHz (fH) −6 − 0.5 dB
f = 1 kHz, (SAP) 100%mod. 350 500 7 00
f = 300 Hz, (SAP) 30%mod. −1.0 0 +1.0 dB
f = 3 kHz, (SAP) 30%mod. −3 −1.5 +0.5 dB
f = 1 kHz, (SAP) 100% 1.5 %

(SAP)

f = 78.7 kHz, (5fH),V= 0.42 V[p-p], BPF

−65 dBV
f = 78.7 kHz, (5fH)22 53
f = 78.7 kHz, (5fH) −4 − 0.5 dB
(SAP) 1 kHz, 100%mod. −50 dB

1

(Stereo) pilot-signal
(Stereo) 1 kHz, 100%mod. −50 dB

2

(SAP) carrier-signal
Pin 27: f
Pin 27: f

=

240 kHz at 5 V applied 38  84

=

240 kHz at 5 V applied −5.5 − 0.3 dB

mV[rms]

mV[rms]

mV[rms]

mV[rms]

mV[rms]

mV[rms]

3

AN5819K ICs for T V

■ Electrical Characteristics at VCC = 9.0 V, Ta = 25°C (continued)

Parameter Symbol Conditions Min Typ Max Unit

I2C interface

Sink current at ACK I
SCL, SDA signal input high level
SCL, SDA signal input low level
Input available maximum frequency

ACK

V

V

f

IMAX

• Design reference data

Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.

Parameter Symbol Conditions Min Typ Max Unit

Stereo separation (30%)-1 Sep
Stereo separation (30%)-2 Sep
Stereo separation (30%)-3 Sep
Stereo separation (30%)-4 Sep
Stereo separation (100%)-1 Sep
Stereo separation (100%)-2 Sep
Stereo separation (100%)-3 Sep
Stereo separation (100%)-4 Sep
Stereo separation (10%)-1 Sep
Stereo separation (10%)-2 Sep
Stereo separation (10%)-3 Sep
Stereo separation (10%)-4 Sep
SAP → Mono crosstalk CT

Mono → SAP crosstalk CT

I2C interface

Bus free before start t

Start condition set-up time t
Start condition hold time t

BUF

SU.STA

HD.STA

Low period SCL, SDA t
High period SCL t
Rise time SCL, SDA t
Fall time SCL, SDA t
Data set-up time (write) t
Data hold time (write) t

SU.DAT

HD.DAT

Maximum pin-2 sink current at ACK 2.0 10 20 mA
 3.5  5.0 V

IHI

 0  0.9 V

ILO

   100 kbit/s

f = 300 Hz, (L(R)-only) 30%mod. 22 30  dB

30-1

f = 1 kHz, (L(R)-only) 30%mod. 22 30  dB

30-2

f = 3 kHz, (L(R)-only) 30%mod. 22 30  dB

30-3

f = 8 kHz, (L(R)-only) 30%mod. 12 18  dB

30-4

f = 300 Hz, (L(R)-only) 100%mod. 20 30  dB

100-1

f = 1 kHz, (L(R)-only) 100%mod. 20 25  dB

100-2

f = 3 kHz, (L(R)-only) 100%mod. 20 30  dB

100-3

f = 8 kHz, (L(R)-only) 100%mod. 8 11  dB

100-4

f = 300 Hz, (L(R)-only) 10%mod. 20 30  dB

10-1

f = 1 kHz, (L(R)-only) 10%mod. 20 30  dB

10-2

f = 3 kHz, (L(R)-only) 10%mod. 20 30  dB

10-3

f = 8 kHz, (L(R)-only) 10%mod. 12 18  dB

10-4

(SAP) 1 kHz, 100%mod. −53 dB

3

(Mono)1 kHz, 0%mod.
(SAP) 1 kHz, 0%mod. −56 dB

4

(Mono) 1 kHz, 100%mod.

 4.0  µs
 4.0  µs
 4.0  µs
 4.0  µs

LO

 4.0  µs

HI

   1.0 µs

r

   0.35 µs

f

 0.25  µs
 0  µs

4