Datasheet tda9804 DATASHEETS (Philips)

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INTEGRATED CIRCUITS

DATA SH EET

TDA9804

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

Preliminary speciﬁcation File under Integrated Circuits, IC02

November 1992

Page 2

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

FEATURES

• Suitable for negative vision modulation controlled by internal or external AGC

• Gain controlled 3-stage IF amplifier; suitable for VIF frequencies up to 60 MHz

• True synchronous demodulation with active carrier regeneration (ultra-linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response)

• Peak sync AGC for negative modulation, e.g. B/G standard

• Voltage controlled external AGC enabled by switching pin

• Video amplifier to match sound trap and sound filter

QUICK REFERENCE DATA

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

i IF

positive supply voltage (pin 20) 4.5 5 8.8 V supply current 51 60 69 mA vision IF input signal sensitivity (RMS value, pins 1 and 2) − 50 90 µV maximum vision IF input signal (RMS value, pins 1 and 2) 70 150 − mV

o CVBS

IF gain control range 64 70 73 dB

CVBS output signal on pin 7 (peak-to-peak value) 1.7 2.0 2.3 V B −3 dB video bandwidth on pin 7 6 8 − MHz S/N (W) signal-to-noise ratio weighted; for video 56 59 − dB

1.1

3.3

o AF

amb

intermodulation attenuation 56 62 − dB

suppression of harmonics in video signal 35 40 − dB

maximum AF output signal for THD < 1.5% (RMS value, pin 9) 0.8 −−V

operating ambient temperature range 0 − +70 °C

• AGC output voltage for tuner; adjustable take-over point (TOP)

• AFC detector without extra reference circuit

• Alignment-free FM-PLL detector with high linearity

• Stabilizer circuit for ripple rejection and to achieve

constant output signals

• 5 to 8 V positive supply voltage range, low power consumption (300 mW at +5 V supply voltage)

GENERAL DESCRIPTION

The TDA9804 is a monolithic integrated circuit for vision and sound IF signal processing in TV and VTR sets.

56 62 − dB

ORDERING INFORMATION

EXTENDED TYPE

NUMBER

TDA9804 20 DIL plastic SOT146

Note

1. SOT146-1; 1996 November 27.

November 1992 2

PINS

POSITION

PACKAGE

MATERIAL CODE

(1)

Page 3

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

TDA9804

November 1992 3

Fig.1 Block diagram.

Page 4

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

PINNING

SYMBOL PIN DESCRIPTION

i IF

TADJ 3 tuner AGC take-over adjust (TOP) φADJ 4 phase detector adjust Mute

SWI

PLL

o CVBS

AGC

SWI

o AF

i IC

TAGC 12 tuner AGC output V

o VID

i VID

AFC 15 automatic frequency control output VCO1 16 VCO reference circuit for 2 fpc VCO2 17 GND 18 ground (0 V) C

AGC

1 vision IF differential input signal 2

5 mute switch input 6 PLL time constant of phase detector 7 CVBS (positive) output signal 8 internal/external AGC switch 9 audio frequency output signal

10 decoupling capacitor of audio frequency

ampliﬁer

11 sound intercarrier input signal

13 video and sound intercarrier output signal 14 video input signal to buffer ampliﬁer

19 AGC capacitor and external AGC voltage 20 positive supply voltage

TDA9804

Fig.2 Pin configuration.

November 1992 4

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

FUNCTIONAL DESCRIPTION Vision IF input

The vision IF amplifier consists of three AC-coupled differential amplifier stages; each stage comprises a controlled feedback network by means of emitter degeneration.

IF and tuner AGC

The automatic control voltage to maintain the video output signal at a constant level is generated according to the transmission standard. Since the TDA9804 is suitable for negative modulation only the peak-sync level is detected. The AGC detector charges and discharges the capacitor on pin 19 to set the IF gain and the tuner gain. In case of an external AGC (depending on the input voltage at pin 8) the internal charging and discharging currents are switched off and an external AGC voltage has to be applied to pin 19. The AGC capacitor voltage is transferred to an internal IF control signal, and is fed to the tuner AGC to generate the tuner AGC output current on pin 12 (open-collector output). The tuner AGC voltage take over point is adjusted on pin 3. This allows the tuner and the IF SAW filter to be matched to achieve the optimum IF input level.

Frequency detector, phase detector and video demodulator

The IF amplifier output signal is fed to a frequency detector and to a phase detector. The frequency detector is operational before lock-in. A DC current is generated which is proportional to the frequency difference between the input frequency and the VCO frequency. After lock-in, the frequency detector and the phase detector generate a DC current proportional to the phase difference between VCO and input signals. The control signal for the VCO is provided by the phase detector. The video demodulator is a linear multiplier, designed for low distortion and wide bandwidth. The vision IF input signal is multiplied by the in-phase component of the VCO output. The demodulated output signal is fed via an integrated low-pass filter (f to the video amplifier for suppression of the carrier harmonics.

= 12 MHz)

TDA9804

VCO and travelling wave divider

The VCO operates with a symmetrically-connected reference LC-circuit, operating at double vision carrier frequency. Frequency control is performed by an internal varicap diode. The voltage to set the VCO frequency to the actual frequency of double vision carrier frequency, is also amplified and converted for the AFC output current. The VCO signal is divided-by-two in a travelling wave divider, which generates two differential output signals with 90 degree phase difference independent of frequency.

Video ampliﬁer, buffer and noise clipping

The video amplifier is a wide bandwidth operational amplifier with internal feedback. A nominal positive modulated video signal of 1 V (p-p) is present on the composite video output (pin 13). The input impedance of the 7 dB wideband buffer amplifier (with internal feedback) is suitable for ceramic sound trap filters. The CVBS output (pin 7) provides a positive video signal of 2 V (p-p). Noise clipping is provided internally.

Sound demodulation

The FM sound intercarrier signal is fed to pin 11 and through a limiter amplifier before it is demodulated. This achieves high sensitivity and high AM suppression. The limiter amplifier consists of seven internal AC-coupled stages, minimizing the DC offset. The FM-PLL demodulator consists of an RC-oscillator, loop filter and phase detector. The oscillator frequency is locked on the FM intercarrier signal from the limiter amplifier. As a result of this locking, the RC-oscillator is frequency-modulated. The modulating signal voltage (AF signal) is used to control the oscillator frequency. By this, the FM-PLL works as an FM demodulator. The audio frequency amplifier with internal feedback is designed for high gain and high common mode rejection. The low-level AF signal coming out of the FM-PLL demodulator is amplified and buffered in a low-ohmic audio signal output stage (pin 9). An external decoupling capacitor on pin 10 removes the DC voltage from the audio amplifier input.

November 1992 5

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC134)

SYMBOL PARAMETER MIN. MAX. UNIT

s max

stg

ESD

Notes to the Limiting Values

1. Supply current I

2. Equivalent to discharging a 200 pF capacitor through a 0 Ω series resistor (negative and positive voltage).

THERMAL RESISTANCE

supply voltage (pin 20) for a maximum chip temperature (note 1)

SOT146 at+120 °C 0 8.8 V

voltage on pins 1, 2, 7, 11, 13, 14, 15 and 19 0 V

V short-circuit time − 10 s tuner AGC output voltage − 13.2 V storage temperature range −25 +150 °C electrostatic handling for all pins (note 2) −±300 V

= 69 mA at T

amb

= +70 °C.

SYMBOL PARAMETER THERMAL RESISTANCE

th j-a

from junction to ambient in free air

SOT146 73 K/W

November 1992 6

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

CHARACTERISTICS

= 5 V; T

level at B/G); video modulation DSB; residual carrier: B/G = 10%; video signal in accordance with CCIR line 17; measurements taken in Fig.3 unless otherwise speciﬁed

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

AGC switch input (pin 8) V

Vision IF input (pins 1 and 2) V

∆V

B −3 dB IF bandwidth upper cut-off

1,2

True synchronous video demodulator

VCO

∆f

VCO

o ref

∆f

acqu

i IF

loop

= +25 °C; fPC= 38.9 MHz; fSC= 33.4 MHz with VPC/VSC= 13 dB (B/G); ViF= 10 mV RMS value (sync

amb

supply voltage range (pin 20) see note 1 4.5 5 8.8 V supply current 51 60 69 mA

input voltage for internal AGC see note 2 1.5 − V

input voltage for external AGC 0 − 0.8 V LOW level input current V8=0 V −−300 −360 µA

B/G standard

input signal sensitivity (RMS value) −1 dB video at output − 50 90 µV maximum input signal (RMS value) +1 dB video at

70 150 − mV

output

IF amplitude difference between picture

within AGC range − 0.7 1 dB

and sound carrier IF gain control range see Fig.4 64 70 73 dB

70 100 − MHz

frequency input resistance 1.7 2.2 2.7 kΩ input capacitance 1.2 1.7 2.5 pF DC input voltage 3.0 3.4 3.8 V

see note 3 maximum oscillator frequency for

f=2f

125 130 − MHz

carrier regeneration oscillator drift (free running) as a

function of temperature oscillator swing at pins 16 and 17

see note 4;

∆T = 0 to+70 °C

−−±1300 10

tbn 120 tbn mV

(RMS value) vision carrier capture range (negative) 1.5 2 − MHz vision carrier capture range (positive) 1.5 2 − MHz acquisition time see note 5;

−−30 ms

BL = 60 kHz IF input signal sensitivity

(RMS value, pins 1 and 2) for PLL still locked see note 6;

− 70 100 µV

maximum IF gain for C/N = 10 dB see note 7 − 100 140 µV FPLL loop offset current at pin 6 see note 8 −−±4.5 µA

-6

November 1992 7

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Composite video ampliﬁer (pin 13)

V V

o vid 13

output signal (peak-to-peak value) see Fig.7 0.9 1.0 1.1 V sync level 1.4 1.5 1.6 V zero carrier level 2.5 2.6 2.7 V upper video clipping level V lower video clipping level − 0.3 0.4 V

R I

int13

0 FM

IF intercarrier level (RMS value) sound carrier on;

output resistance −−10 Ω internal bias current for emitter follower DC 1.8 2.5 − mA maximum output sink current DC and AC 1.4 tbn − mA maximum output source current 2.0 tbn − mA

B −3 dB video bandwidth C13< 50 pF;

suppression of video signal harmonics see note 10;

RR ripple rejection on pin 13 see Fig.9 32 35 − dB

sound carrier off

see note 9

RL> 1 kΩ

C13< 50 pF;

RL> 1 kΩ

− 1.1 VP− 1.0 − V

tbn 140 tbn mV

710−MHz

35 40 − dB

CVBS buffer ampliﬁer and noise clipper (pins 7 and 14) R

o CVBS

input resistance 2.6 3.3 4.0 kΩ input capacitance 1.4 2 3.0 pF DC voltage at input pin 14 not connected 1.5 1.8 2.1 V voltage gain see note 11 6 7 7.5 dB CVBS output signal on pin 7

(peak-to-peak value)

sound carrier off;

see Fig.3

1.7 2.0 2.3 V

CVBS output level upper video clipping tbn 4.0 − V

lower video clipping − 1.0 tbn V

sync level 1.25 1.35 1.45 V

R I I

7 int7 7

output resistance −−10 Ω internal bias current for emitter follower DC 1.8 2.5 − mA maximum output sink current DC and AC 1.4 tbn − mA maximum output source current 2.4 tbn − mA

B −3 dB video bandwidth C

< 20 pF;

811−MHz

RL> 1 kΩ Measurements from IF input to CVBS output (pin 7) 330 Ω between pins 13 and 14, sound carrier off V

o CVBS

CVBS output signal on pin 7

1.7 2.0 2.3 V

(peak-to-peak value)

∆V

deviation of CVBS output signal at B/G 50 dB gain control −−0.5 dB

30 dB gain control −−0.1 dB

black level tilt B/G standard;

−−1%

see note 12

November 1992 8

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

∆G differential gain − 25% ∆ϕ differential phase − 1 3 deg B −3 dB video bandwidth C

< 20 pF;

RL> 1 kΩ S/N(W) signal-to-noise ratio; weighted see Fig.5 and

note 13

1.1

3.3

intermodulation at ‘blue’ see Fig.6 and intermodulation at ‘yellow’ 58 64 − dB

note 14; f = 1.1 MHz

intermodulation at ‘blue’ see Fig.6 and intermodulation at ‘yellow’ 57 63 − dB

note 14; f = 3.3 MHz

residual vision carrier (RMS value) fundamental wave − 110mV

harmonics − 110mV

suppression of video signal harmonics see note 10 35 40 − dB

RR ripple rejection on pin 7 see Fig.9 25 28 − dB

68−MHz

56 59 − dB

56 62 − dB

AGC detector (pin 19) t

resp

response to an increasing amplitude step of 50 dB in input signal

response to an decreasing amplitude step of 50 dB in input signal

charging current see note 12 0.85 1.1 1.35 mA discharging current 17 22 27 µA

AGC voltage see Fig.4

Tuner AGC (pin 12) V

IF input signal for minimum starting point of tuner take over (RMS value)

IF input signal for maximum starting point of tuner take over (RMS value)

allowable voltage from external source −−13.2 V saturation voltage I

∆V

variation of take over point by temperature

∆G

sink current see Fig.4

IF slip by automatic gain control tuner gain current

− 110ms

− 50 100 ms

maximum gain 0 tbn − V

minimum gain − tbn V

input at pins 1 and 2;

= 22 kΩ

TOP

input at pins 1 and 2;

=0Ω

TOP

= 1.7 mA −−0.2 V

−−5mV

50 −−mV

− 0.7 V

∆T = 0 to+50 °C − 13dB

no tuner gain

− 0.1 0.3 µA

reduction

maximum tuner gain

1.7 2.0 2.6 mA

reduction

− 68dB

from 20 to 80%

November 1992 9

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

AFC circuit (pin 15)

S control steepness ∆I ∆f

frequency variation by temperature ∆T = 0 to+70 °C;

output voltage upper limit see Fig.8 VP− 0.5 VP − 0.3 − V

/∆f see note 16 0.6 0.72 0.84 µA/kHz

output voltage lower limit − 0.3 0.5 V

output current source 160 200 240 µA output current sink 160 200 240 µA

∆I

residual video modulation current

(peak-to-peak value) Sound mute switch (pin 5) V

V I

α ∆V

IL IH

mute

input voltage for MUTE-ON 0 − 0.8 V

input voltage for MUTE-OFF 1.5 − V

LOW level input current V5=0 V −−300 −360 µA

audio attenuation V5=0 V 70 80 − dB

DC offset voltage at switching (plop) switching to

FM sound limiter ampliﬁer (pin 11) V

i FM

input signal (RMS value, pin 11) CCIR468-4

for S/N = 40 dB see Fig.11 − 200 300 µV

for AM suppression α

= 40 dB AM: f = 1 kHz;

maximum input signal handling

(RMS value) R

input resistance 480 600 720 Ω B −3 dB IF frequency response of sound IF lower and upper

DC voltage 2.3 2.6 2.9 V

see Fig.8 and note 15

see note 4

see note 17

MUTE-ON FM 5.5 MHz

m = 0.3

cut-off frequency

−−±1300 10

−6

− 20 30 µA

− 100 500 mV

− 1 − mV

200 −−mV

3.5 − 10 MHz

November 1992 10

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

FM-PLL sound demodulator and AF output (pin 9)

i FM

catching range of PLL 4 − 7 MHz

holding range of PLL 3.5 − 8 MHz t

acqu

∆f

o AF

acquisition time −−4µs

frequency deviation THD< 1.5%;

DC voltage at decoupling capacitor voltage dependent

AF output signal (RMS value, pin 9) ∆fAF= ±27 kHz;

maximum output signal handling THD < 1.5% 0.8 −−V ∆V

temperature drift of AF output signal ∆T = 0 to +70 °C − 0.2 0.5 dB

output resistance − 100 −Ω

load resistance (pin 9) 2.2 −−kΩ

DC voltage 1.6 2.0 2.4 V B −3 dB audio frequency bandwidth 95 120 − kHz THD total harmonic distortion − 0.1 0.5 % S/N (W) signal-to-noise ratio, weighted CCIR468-4;

residual sound carrier and harmonics

(RMS value)

AM suppression see Fig.10;

RR ripple rejection on pin 9 see Fig.9 26 30 − dB Measurements from IF input to audio output (pin 9) S/N (W) weighted signal-to-noise ratio referred

to 54% FM modulation

6 kHz sinusoidal waveform black-to-white 39 46 − dB

black level sync only 39 48 − dB

white picture 39 46 − dB

see note 18

−−±50 kHz

see note 19

1.2 − 2.2 V on VCO frequency; see note 20

280 350 420 mV

see Fig.11

50 55 − dB

see Fig.11

−−75 mV

46 50 − dB

AM: f = kHz; m = 0.3

560 Ω between pins 13 and 11 CCIR468-4; with offset alignment on pin 4

November 1992 11

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

Notes to the characteristics

1. Typical values of video and sound parameters are decreased at VP= 4.5 V.

2. The input voltage for internal AGC has to be V8> 1.5 V, or pin 8 open-circuit.

3. Loop bandwidth BL = 60 kHz (natural frequency fn= 15 kHz; damping factor d = 2 calculated with grey level and FPLL input signal level). Resonance circuit of VCO: Qo> 50; C

4. The oscillator drift is related to the picture carrier frequency (at external temperature-compensated LC-circuit).

5. V

= 10 mV (RMS value); ∆f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture

i IF

video modulation.

6. V

for 0.9 V CVBS (peak-to-peak value) at composite video output pin 13; PLL is still locked.

i IF

7. Transformer at IF input (Fig.3). The C/N ratio at IF input for ‘lock-in’ is defined as the vision IF input signal (sync level, RMS value) in relation to a superimposed, 5 MHz band-limited white noise signal (RMS value); video modulation: white picture.

8. Offset current measured between pin 6 and half of supply voltage (V = 2.5 V) under the following conditions: no input signal at IF input (pins 1 and 2) and IF-amplifier gain at minimum (V19=VP), pin 4 (phase adjust) open-circuit.

9. The intercarrier output signal is superimposed to the video signal at pin 13 and can be calculated by the following formula:



20 log

13 interc.



-------------------------------------- -



1 V (p-p)

(p-p)



iSC

----------- -



iPC

with

iSC

dB = sound to picture carrier ratio at IF input pins 1 and 2()in dB

----------- V

iPC

and ±2 dB = tolerance of intercarrier output amplitude V

10. Measurements taken with SAW filter G1956; modulation: VSB, f

11. The 7 dB buffer gain accounts for 1 dB loss in the sound trap. Buffer output signal is typical 2 V (p−p). If no sound trap is applied a 330 Ω resistor must be connected from output to input (from pin 13 to pin 14).

12. The leakage current of the AGC capacitor has to be < 1 µA to avoid larger tilt.

13. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 7). B = 5 MHz weighted in accordance with CCIR-567 at a source impedance of 50 Ω.

14. α

= 20 log (Vo at 4.4 MHz / Voat 1.1 MHz)+3.6 dB; α

1.1

= 20 log (Vo at 4.4 MHz / Voat 3.3 MHz); α

3.3

15. To match the AFC output signal to different tuning systems a current source output is provided (Fig.8).

16. Depending on the ratio ∆C/Co of the LC resonance circuit of VCO (Qo> 50; Co=C

int+Cext

; C

ext

= 8.2 pF; C

17. No mute state is also valid for pin not connected.

18. A 5.5 MHz signal for second IF with 10 mV (RMS value) input level, f FM modulation of audio reference is fed directly to pin 11. Audio measurements are taken at 50 µs de-emphasis.

19. To allow higher frequency deviation, the resistor Rxon pin 10 (see Fig.12) has to be increased to a value which does not exceed the AF output signal of nominally 0.35 V for THD = 0.1% (Rx= 4.7 kΩ provides −6 dB amplification).

20. The leakage current of the 2.2 µF capacitor is < 100 nA.

dB + 6.9 dB 2 dB±=

= 8.2 pF; C

ext

≈ 8.5 pF).

int

≈ 8.5 pF (loop voltage about 2.7 V).

int

o FM

> 0.5 MHz, loop bandwidth BL = 60 kHz.

video

value at 1.1 MHz related to black/white signal

1.1

value at 3.3 MHz related to colour carrier.

3.3

= 1 kHz and frequency deviation with 54%

mod

November 1992 12

Page 13

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

TDA9804

November 1992 13

Fig.3 Test circuit.

Page 14

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

handbook, full pagewidth

IF

(dB)

−10 0

1234

(2) (3) (4)

(1)

TDA9804

V19 (V)

MED332

12

(mA)

0.2

0.6

1.0

1.4

1.8

2.0

handbook, halfpage

S/N

(dB)

−60 −40 −20 20

0.06 0.6 6 60060

Fig.4 IF AGC (dashed) and tuner AGC as a function of take over point adjustment.

MED333

handbook, halfpage

−13.2 dB

−24 dB

SC CC PC SC CC PC

SC = sound carrier level ; with respect to TOP sync level. CC = chrominance carrier level ; with respect to TOP sync level.

0 V

i IF(rms)

(dB)

(mV)

PC = picture carrier level ; with respect to TOP sync level.

Sound shelf attenuation: 17 dB.

−3.2 dB

−13.2 dB

−24 dB

BLUE YELLOW

−10 dB

MED334

Fig.5 Typical signal-to-noise ratio as a function of IF

input signal.

November 1992 14

Fig.6 Input conditions for intermodulation

measurements.

Page 15

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

handbook, halfpage

2.6 V

2.5 V

1.8 V

1.5 V

Fig.7 Video signal levels on output pin 13.

zero carrier level

white level

sync level

MED335

TDA9804

Fig.8 Measurement conditions and typical AFC characteristic.

Fig.9 Ripple rejection condition.

November 1992 15

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

AM

(dB)

−100

−20

−40

−60

−80

−1

handbook, full pagewidth

10 10

TDA9804

MED338

(mV)

i IC

handbook, full pagewidth

370

o AF

(mV RMS)

360

350

340

330

−1

Fig.10 Typical AM suppression of FM sound demodulator.

(1)

(2)

11010

Vi FM (mV)

MED339

S/N (W)

(dB)

November 1992 16

Fig.11 Typical AF output signal and signal-to-noise ratio.

Page 17

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

TDA9804

(1) depends on tuner

Fig.12 Application circuit.

November 1992 17

Page 18

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

TDA9804

(1) depends on TOP

November 1992 18

Fig.13 Front end level diagram.

Page 19

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

TDA9804

November 1992 19

Fig.14 Internal circuits.

Page 20

Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or external AGC and FM-PLL detector

PACKAGE OUTLINE

DIP20: plastic dual in-line package; 20 leads (300 mil)

seating plane

TDA9804

SOT146-1

w M

(e )

pin 1 index

0 5 10 mm

scale

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

A

A 

UNIT

inches

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

max.

OUTLINE VERSION

SOT146-1

1 2

min.

max.

1.73

1.30

0.068

0.051

IEC JEDEC EIAJ

  SC603

0.53

0.38

0.021

0.015

0.36

0.23

0.014

0.009

REFERENCES

cD E e M

(1) (1)

26.92

26.54

1.060

1.045

6.40

6.22

0.25

0.24

(1)

3.60

8.25

3.05

7.80

0.14

0.32

0.12

0.31

EUROPEAN

PROJECTION

10.0

0.2542.54 7.62

8.3

0.39

0.010.10 0.30

0.33

ISSUE DATE

92-11-17 95-05-24

Z

max.

2.04.2 0.51 3.2

0.0780.17 0.020 0.13

November 1992 20

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Philips Semiconductors Preliminary speciﬁcation

VIF-PLL demodulator with internal or

TDA9804

external AGC and FM-PLL detector

SOLDERING Introduction

There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used.

This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our

“IC Package Databook”

Soldering by dipping or by wave

The maximum permissible temperature of the solder is 260 °C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds.

The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (T be necessary immediately after soldering to keep the temperature within the permissible limit.

Repairing soldered joints

Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds.

(order code 9398 652 90011).

). If the printed-circuit board has been pre-heated, forced cooling may

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DEFINITIONS

Data sheet status

Objective speciﬁcation This data sheet contains target or goal speciﬁcations for product development. Preliminary speciﬁcation This data sheet contains preliminary data; supplementary data may be published later. Product speciﬁcation This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.

November 1992 21