Datasheet LA1828 Datasheet (SANYO)

Ordering number : EN5837

LA1828

Monolithic Linear IC

LA1828

Single-Chip Tuner IC for Portable Radio

/Cassette Recorders with Manual Tuning

Functions

• AM: RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, tuning display output

• FM-FE: RF amplifier, mixer, oscillator

• FM-IF: IF amplifier, quadrature detector, signal strength meter, tuning display output

• MPX: PLL stereo decoder, stereo display output, forced mono, internal VCO

Features

• Single-chip tuner with AM, FM-FE/FM-IF, MPX

circuitry

• Built-in adjustment-free MPX-VCO (noceramic

oscillator required)

• Reduced FM-FE oscillation level

• FM stereo indication and AM/FM tuning indication

outputs can directly drive LEDs

Specifications

Maximum Ratings at Ta = 25°C

V

Maximum supply voltage Indicator drive current Allowable power dissipation Operating temperature Storage temperature

max

CC

I

LED

Pd max

Topr

Tstg

pins 8, 9

Ta ≤ 70°C

Package Dimensions

unit:mm

3067-DIP24S

[LA1828]

24

±

0.25

0.81 1.78

Conditions

1

±

0.25

0.48

21.2

±

0.25

+0.15

-0.05

[LA1828]

±

0.95

13

0.25

±

0.25

±

6.4

7.62

12

0.1

±

max

3.25

3.9

0.25

±

min

3.3

0.51

0.15

SANYO:DIP24S

+0.15

-0.05

0.25

Ratings UnitSymbolParameter

7.0

V

20

mA

300

mW

–20 to +70

–40 to +125

°C °C

Operating Conditions at Ta = 25°C

Parameter

Recommended supply voltage Operating supply voltage range

Symbol

V

CC

VCCop

Conditions

Ratings

SANYO Electric Co., Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

51198RM(KI) No. 5837-1/13

4.5

2.5 to 6.0

Unit

V V

Ordering number : EN5837

LA1828

Operating Characteristics at Ta = 25°C, Vcc = 4.5V, in specified test circuit, using Y amaichi Electr onics socket IC-179-2

Parameter Symbol Conditions

[FM-FE characteristics]: fc = 98 MHz, fm = 1 kHz, 30% mod.

=108.7 MHz, pin 20 output

Local oscillator voltage

3 dB sensitivity Effective sensitivity

[FM-IF monaural characteristics]: fc = 10.7 MHz, fm = 1 kHz, 100% mod.

Quiescent current Demdulator output Signal-to-noise ratio Total harmonic distortion (mono) 3 dB sensitivity TU-LED sensitivity

[FM-IF stereo characteristics]: fc = 10.7 MHz, fm = 1 kHz, L+R = 90%, pilot = 10%

Separation ST-LED sensitivity Total harmonic distortion (main)

[AM characteristics]: fc = 1000 kHz, fm = 1 kHz, 30% mod.

Quiescent current Demdulator output

Signal-to-noise ratio

Total harmonic distortion

TU-LED sensitivity

V

OSC

3dB LS

Qs

(FM)

I

CCO

V

S/N

THD

3 dB LS

SD-ON

SEP

ST-ON

THD

I

(AM)

CCO

VO1

VO2 S/N1 S/N2

THD1 THD2

SD-ON

f

OSC

*Measured with FET buffer (-10 dB gain) 60 dBµ, 30% mod. output, -3 dB input Input for S/N = 30 dB

No input 100 dBµ, pin 16 output

O

100 dBµ, pin 16 output 100 dBµ, pin 16 output 100 dBµ, 100% mod.output, -3 dB input

100 dBµ, L-mod, pin 16/pin 17 output 100 dBµ, pilot modulation for pin 8 voltage < 0.5V 100 dBµ, main modulation, pin 16 outpu

No input 23 dBµ, pin 16 output 80 dBµ, pin 16 output 23 dBµ, pin 16 output 80 dBµ, pin 16 output 80 dBµ, pin 16 output 107 dBµ, pin 16 output

Ratings

min typ max

40 80

13 12

8

130

62

21

25

1.5

t

5 18 50 15 47

16

190

70

0.4 32 33

40

3.5

0.5

8.5 40 85 20 53

0.5

0.5 26

Unit

160 mVrms

dBµ dBµ

23

mA

260

mVrms

dB

1.2

%

42

dBµ dBµ

dB

%

6.3 %

1.2

15

mA

70

mVrms

130

mVrms

dB dB

1.3

%

1.5

%

dBµ

Pin Description and Quiescent Voltage at Vcc = 4.5V

number

1

2

Function

AM RF input

Reg

Quiescent

voltage (V)

FMAM

1.3 1.3

1.31.3

Equivalent circuit Remarks

1

2

A10247

A10248

AM antenna coil connected between pins 1 and 2 (reg)

V

=1.3V

reg

51198RM(KI) No. 5837-2/13

Ordering number : EN5837

Continued from preceding page

LA1828

Continued on next page

number

3 4.54.5AM-OSC

4 4.54.5VCC1

5 4.5 4.5FM mixer output

600GND1

Function

Quiescent

voltage (V)

Equivalent circuit

FMAM

3 4

A10249

4 5

A10250

Oscillator coil connected between pins 3 and 4 (V

AM/FM-IN/MPX block V Mixer coil connected

between pins 5 and 4 (V

AM/FM-IN/MPX section ground

Remarks

CC

1)

CC

1)

CC

7

AM mixer output

8 4.5 4.5Tu-LED output

ST-LED output

9 4.5 4.5

and AM-IF output

4.5 4.5

7 4

8

9

A10251

A10252

Mixer coil connected between pins 7 and 4 (V

Active low Open-collector output can directly drive LED (IC max = 20 mA)

Active low Open-collector output can directly drive LED (IC max = 20 mA) In AM operation, AM-IF signal (450 kHz) is output here.

1)

CC

A10253

Continued on next page

51198RM(KI) No. 5837-3/13

Ordering number : EN5837

Continued from preceding page

number

Function

Quiescent

voltage (V)

LA1828

Equivalent circuit Remarks

FMAM

= 330 Ω

R

IN

10

10 1.31.3FM-IF input

11 1.3 1.3AM-IF input

AM-AGC output

12 0.7 0.2

and FM S meter output

R

IN

2

A10254

RIN = 2 kΩ

11

R

IN

2

A10255

Internal load impedance R = 16.6 kΩ

12

R

A10256

13

Detector coil connected between pins 13 and 4 (V

1)

CC

13 4.5 4.5FM detector

Pilot tone

14 2.9 3.8

15 0 3.8

detector filter and forced mono switching

Phase comparator filter and AM/FM switching

A10257

14

A10258

15

A10259

Mono mode is forced on by connecting pin 14 to ground.

FM reception mode is enabled when pin 15 is open. AM reception mode is enabled when pin 15 is connected to ground.

Continued on next page

51198RM(KI) No. 5837-4/13

Ordering number : EN5837

Continued from preceding page

number

Function

Quiescent

voltage (V)

LA1828

Equivalent circuit Remarks

FMAM

R

= 7.5 kΩ

OUT

16 17

L output R output

18 1.3 1.3MPX input

FM detector

19 0.5

output and AM detector output

1.5

1.41.4 R

OUT

17

A10260

16

= 50 kΩ

R

IN

18

R

IN

A10261

Output impedance

OUT OUT

= 50 kΩ

= 500 Ω

R

21

OUT

(FM)

R

OUT

19

(AM)

A10262

AM: R FM: R Capacitance between pin 19 and ground should be optimzed for the best separation characteristics.

Colpitts oscillator circuit FM oscillator coil connected to pin 20.

20 4.5 4.4FM-OSC

21 4.5 4.4V

22

24

2

CC

FM-RF output

FM-RF input

23

20

A10263

FM-FE block V

R

Power is supplied from pin 4

1) via external resistor

(V

CC

(10 Ω).

21 4

A10264

4.504.4

2122

FM RF coil connected between pins 22 and 21

2).

(V

CC

1.0

24

RIN = 1.8 kΩ

A10265

00GND2 FM-FE brock ground

51198RM(KI) No. 5837-5/13

Ordering number : EN5837

LA1828

Coil specifications (bottom view)

• FM-BPF: SA-309 (Sumida) 88 to 108 MHz

• FM-RF: SA-149 (Sumida) 3.6 mm dia., air core, 0.6 mm wire, 4 1/2 T

• FM-OSC: SA-151 (Sumida) 3.6 mm dia., air core, 0.6 mm wire, 3 1/2 T

• FM-Mix: SA-165 (Sumida) • AM-OSC: SA-181 (Sumida)

SS

3

4

➃ - ➅ 2T

S

3

4

➂ - ➀ 12T

0.12 UEW = 10.7 MHz

f

2

1

6

0

≥ 50

Q

0

With 100 pF internal capacitor

2

1

6

S

A10395

A10269

• FM-Det: SA-1134 (Sumida) • AM-IFT: SA-1136 (Sumida)

S

3

4

➀ - ➂ 12T

3

S

4

0.10 UEW

f

= 10.7 MHz

0

≥ 70

Q

2

0

With 82 pF

2

internal capacitor

1

6

1

6

S

A10267

A10270

• FM-IF filter: SFE10.7MS2 (Murata) • AM-IF filter: SFU450B (Murata)

➅ - ➃ 37T ➂ - ➀ 74T

0.06 UEW = 796 kHz

f

0

≥ 80

Q

0

L = 140 µH

➂ - ➁ 122T ➃ - ➅ 9T ➁ - ➀ 62T

0.06 UEW = 450 kHz

f

0

≥ 65

Q

0

With 180 pF internal capacitor

• Poly-varicon: FT-2217 (Toko) or PVC-22KTL (Mitsumi)

• MW bar antenna: TYA-1005 (Mitsumi)

1 2 3 4

SS

A10394

➀ - ➁ 68T ➂ - ➃ 9T

= 796 kHz

f

0

≥ 230

Q

0

L = 260 µH

51198RM(KI) No. 5837-6/13

Ordering number : EN5837

LA1828

• FM-Mix: YT-30224 (Mitsumi) for DUT • AM-OSC: HW-50425 (Mitsumi) for DUT

S

3

4

➅ - ➃ 2T

3

S

4

➀ - ➂ 8T

0.12 UEW = 10.7 MHz

f

2

1

6

0

= 80

Q

0

With 150 pF internal capacitor

2

1

6

SS

A10266

A10271

• FM-Det: YT-30103 (Mitsumi) for DUT • AM-IFT: YD-1073-1 (Mitsumi) for DUT

S

3

2

1

4

➀ - ➂ 10T f

= 10.7 MHz

0

= 90

Q

0

With 82 pF internal capacitor

6

S

3

2

1

S

A10268

4

6

SFU450B

A10272

➂ - ➁ 2T ➃ - ➅ 9T ➁ - ➀ 86T

≥ 80

Q

0

L = 270 µH

➀ - ➁ 58T ➃ - ➅ 7T ➁ - ➂ 94T

= 450 kHz

f

0

With 180 pF internal capacitor

51198RM(KI) No. 5837-7/13

FM Ant

Block Diagram

Ordering number : EN5837

B.P.F.

+

L-OUTR-OUT

+

MN STAM FM

24 23 22 21 20 19 18 17 16 15 14 13

FM RF

GND2

VCC2

FM

OSC

TRIG

DECODER

VCOST-SW

PHASE

COMP

FFFF

DET

FF

FM

MIX

PILOT

DET

AM

AM RF

REG

MIX

AM

OSC

VCC1 GND1

TUN LED

ST

LED

S-METER

FM-IF

DET

AM-IF

AGC

LA1828

AM Ant

51198RM(KI) No. 5837-8/13

1 2345 67891011 12

AM/FM

TUN

FM ST

10.7M

450k

+

V-AGC V-SM

V

CC

A10273

Ordering number : EN5837

Test Circuit

LA1828

0dB

R-OUT

L.P.F

amp

L-OUT

L.P.F

amp

A10274

2.2kΩ FM-DET

YT-30103

V-SM

=4.5V

CC

V

+

22µF

3.3µF MN STAM FM

+

0.1µF

+

3.3kΩ

0.47µF

6800pF6800pF

FM ST

SD

AM/FM

1kΩ

0.047µF

300Ω

51Ω

(10.7MHz)

FM IF-input

100Ω

+5.0V

5pF

FM-Vosc

(108.7MHz)

100kΩ

2SK315

10Ω

1000pF1000pF

SA-309

2200pF

18pF

15pF

B.P.F.

+

30pF

SA-151

FM-OSC

FM-RF

SA-149

1000pF

4.7µF

AM-IFT

YD-1073-1

LA1828

10.7M

FM-IFT

YT-30224

+

100µF 0.047µF

HW-50425

0.047µF

+_

10µF

24 23 22 21 20 19 18 17 16 15 14 13

10pF

V-REG

1 2345 6789 101112

0.047µF

24pF

AM-OSC

39mH

51Ω

(98MHz)

FM ant-input

(1000kHz)

AM ant-input

51198RM(KI) No. 5837-9/13

Ordering number : EN5837

Sample Application Circuit

2.2kΩ FM-DET

SA-1134

3.3µF MN STAM FM

+

0.1µF

+

3.3kΩ

0.47µF

6800pF6800pF

LA1828

V-SM

+

22µF

FM ST

A10275

=4.5V

CC

V

1kΩ

10Ω

1000pF1000pF

1800pF

18pF

FM-OSC

15pF

+

30pF

SA-151

SD

1kΩ

AM/FM

450KHz

4.7µF

AM-IFT

SA-1136

LA1828

100Ω

390pF

10.7MHz

FM-IFT

27pF

SA-165

+

100µF 0.047µF

FM antenna

SA-309

B.P.F.

FM-RF

SA-149

1000pF

24 23 22 21 20 19 18 17 16 15 14 13

V-REG

12345 6789 101112

TYA-1005

AM antenna

SA-181

AM-OSC

0.047µF

+

10µF

18pF

51198RM(KI) No. 5837-10/13

Ordering number : EN5837

LA1828

0

VCC=4.5V fc=98MHz

-10

fm=1kHz,22.5kHzdev

-20

-30

-40

-50

Output - dBm

-60

-70

-80

-90

-100

FM characteristics

Signal

AM Out

Noise

0 20406080100 140120-20

ANT input - dBµ

80

fc=98kHz V

IN

fm=1kHz,22.5kHzdev

70

60

50

40

S/N - dB

30

Qs,Ls,SD - dBµ

20

10

0

1

FM Vcc characteristics

=60dBµ

S/N

V

O

SD

L

S

Q

S

234567

Power supply voltage, Vcc - V

characteristics

cc

- mA

cco

30

20

10

VCC=3V No input fm=1kHz

FM V

Quiescent current I

0

1234567

Power supply voltage, V

10

VCC=4.5V V

7

IN

fc=98MHz

5

L+R=90% PILOT=10%

3

2

=60dBµ

MPX characteristics

- V

cc

SUB

ST

1.0

7

5

3

2

Total harmonic distortion, THD - %

0.1

0.01

MONO

MAIN

23 57 23 57 23 2357

0.1 1.0 10

Modulation frequency, fm - kHz

Total harmonic distortion, THD - %

0

-10

-20

-30

-40

-50

Output, Vo - dBm

-60

-70

-80

Total harmonic distortion, THD - %

dBµ

Qs,Ls,SD -

Separation - dB

5

VCC=4.5V fc=98MHz fm=1kHz

4

3

2

1

0

0 20406080100120140-20

FM characteristics

V

SM

THD=75kHzdev

THD=25kHzdev

ANT input - dBµ

5

fc=98MHz V

IN

fm=1kHz

4

3

2

1

FM V

=60dBµ

THD=75kHzdev

THD=22.5kHzdev

0

01234567

Power supply voltage, V

80

fc=4.5kHz

=60dBµ

V

IN

fm=1kHz,22.5kHzdev

70

60

50

dB

-

40

S/N

30

20

L

10

0

80 90 100 110

S

characteristics

cc

FM characteristics

S/N

SD

Q

S

- V

cc

Reception frequency, fr - MHz

60

VCC=4.5V

=60dBµ

V

IN

fc=98MHz

50

L+R=90% PILOT=10%

0

21032053074023 57 23 2357

0.01

MPX characteristics

Sep-R

Sep-L

0.1 1.0 10

Modulation frequency, fm - kHz

2.5

2.0

1.5

1.0

S meter voltage, Vsun- V

0.5

0

51198RM(KI) No. 5837-11/13

Ordering number : EN5837

LA1828

0

VCC=4.5V fc=1MHz

-10

fm=1kHz,30%mod

-20

-30

-40

-50

-60

Output - dBm

-70

-80

-90

-100 0 20 40 60 80 100 120 140

AM characteristics

Signal

Noise

ANT input - dB/m

5

VCC=4.5V fc=1MHz fm=1kHz

4

3

2

1

otal harmonic distortion, THD - %

T

0

0 20 40 60 80 100 120 140

AM characteristics

THD=80%

THD=30%

ANT input - dB/m

70

fc=1MHz V

IN

fm=1kHz,30%mod

60

50

40

30

S/N - dB

Sensitivity - dB/m

20

10

0

01 2 43 567

AM VCC characteristics

=74dB/m

Maximum sensitivity

(input for 20 mV output)

SD

S/N

V

O

Power supply voltage, Vcc - V

characteristics

80

VCC=4.5V

=74dB/m

V

IN

fm=1kHz,30%mod

70

AM

2.0

VCC=3V fc=1MHz

1.5

- V

AGC

1.0

AGC voltage, V

0.5

0

0 20 40 60 80 100 120 140

AM characteristics

ANT input - dB/m

0

VCC=4.5V fc=900kHz

-10

fm=1kHz,30%mod

-20

-30

-40

-50

-60

Output - dBm

-70

-80

-90

-100 0 20406080100120140

AM characteristics

Signal

IF Beat

ANT input - dB/m

-10

-20

-30

Q

S

-40

-50

-60

-70

-80

5

fc=1MHz V

IN

fm=1kHz,30%mod

4

- dBm

O

3

2

Detector output V

1

Total Harmonic distortion, THD - %

0

01234567

AM V

=74dB/m

Power supply voltage, V

characteristics

CC

I

CCO

THD=80%

THD=30%

V

-

cc

25

20

- mA

CCO

15

10

5

Quiescent current, I

0

60

50

40

S/N - dB

30

Sensitivity - dB/m

20

10

0

400 600 800 1000 1200 1400 1600 1800

S/N

Maximum sensitivity

(input for 20 mV output)

Reception frequency, f

SD

Q

S

- kHz

51198RM(KI) No. 5837-12/13

Ordering number : EN5837

LA1828

■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of

which may directly or indirectly cause injury, death or property loss.

■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and

distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use:

➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on

SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.

■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied

regarding its use or any infringements of intellectual property rights or other rights of third parties.

This catalog provides information as of May, 1998. Specifications and information herein are subject to change without notice.

51198RM(KI) No. 5837-13/13

PS