Philips TDA9809M Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TDA9809M

Single standard multimedia IF-PLL and FM radio demodulator

Preliminary speciﬁcation File under Integrated Circuits, IC02

1998 Jan 08

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM radio demodulator

FEATURES

• 5 V supply voltage

• Applicable at Intermediate Frequencies (IFs) of 38.9 and

45.75 MHz

• Gain controlled wideband Video IF (VIF) amplifier (AC-coupled)

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

• Robustness for over-modulation better than 105% due to PLL bandwidth control for negative modulation standards

• VIF AGC (Automatic Gain Control) detector for gain control, operating as peak sync detector for negative modulation standards

• Tuner AGC with adjustable TakeOver Point (TOP)

• AFC (Automatic Frequency Control) detector without

extra reference circuit

• AC-coupled limiting amplifier for sound intercarrier signal

• Alignment-free FM PLL (Phase-Locked Loop) demodulator with high linearity; integrated de-emphasis resistor

• Integrated level detector

• Alignment-free FM radio AFC detector with external

resonator

• RIF (Radio IF) amplifier for 10.7 MHz

• Stabilizer circuit for ripple rejection and to achieve

constant output signals

• ESD (Electrostatic Discharge) protection for all pins.

GENERAL DESCRIPTION

The TDA9809M is an integrated circuit for single standard vision IF signal processing, FM demodulation and FM radio demodulation in multimedia sets.

TDA9809M

ORDERING INFORMATION

TYPE NUMBER

NAME DESCRIPTION VERSION

TDA9809M SSOP20 plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1

1998 Jan 08 2

PACKAGE

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

TDA9809M

radio demodulator

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply (pin 19)

Television mode

i(VIF)(rms)

o(video)(p-p)

−3dB

S/N

W(video)

IM(0.92/1.1)

IM(2.76/3.3)

H(sup)

i(SIF)(rms)

o(audio)(rms)

THD

video

S/N

W(audio)

supply voltage 4.5 5 5.5 V supply current TV mode 76 89 102 mA

radio mode 29 35 41 mA power-down mode 5 8 11 mA

minimum vision IF input signal

−1 dB video at output − 60 100 µV

voltage (RMS value) video output signal voltage

0.97 1.1 1.23 V

(peak-to-peak value)

−3 dB video bandwidth on pin 13 CL< 30 pF; RL> 1.5 kΩ;

78−MHz

AC load

weighted signal-to-noise ratio for

54 58 − dB

video intermodulation attenuation at ‘blue’ f = 0.92 or 1.1 MHz 52 58 − dB intermodulation attenuation at ‘blue’ f = 2.76 or 3.3 MHz 52 58 − dB suppression of harmonics in video

35 40 − dB

signal minimum sound IF input signal

−3 dB at intercarrier output − 30 70 µV

voltage (RMS value) audio output signal voltage for FM

0.4 0.5 0.6 V

(RMS value) total harmonic distortion for video − 0.5 1.0 % weighted signal-to-noise ratio for

50 55 − dB

audio

Radio mode

i(RIF)(rms)

i(FM)(rms)

/log∆Vioutput voltage slope according to

∆V

minimum radio IF input signal voltage (RMS value)

minimum FM limiter input signal voltage (RMS value)

d3< 60 dB intermodulation; note 1

SN+

unweighted 26 dB=

-------------N

FM limiter input voltage

o(audio)(rms)

audio output signal voltage for radio

22.5 kHz modulation 200 250 300 mV

(peak-to-peak value) THD S/N

audio

W(audio)

total harmonic distortion for audio 22.5 kHz modulation − 0.5 1.0 %

weighted signal-to-noise ratio for

audio

22.5 kHz modulation; 15 kHz bandwidth

Note

is the ratio of the intermodulation product at 10.3 MHz to the level of V

1. d

1998 Jan 08 3

−−20 mV

− 100 −µV

− 50 − mV/dBµV

59 64 − dB

i(4)(max)(rms)

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1998 Jan 08 4

handbook, full pagewidth

BLOCK DIAGRAM

Single standard multimedia IF-PLL and FM

radio demodulator

Philips Semiconductors Preliminary speciﬁcation

TV/radio

tuner AGC

VIF

SAW

10.7 MHz

TAGC

iVIF1

iVIF2

iRIF

TADJ

TUNER

AGC

VIF AMPLIFIER

AGC DETECTOR

AND

LOGIC

VAGC

VIF

AGC

PLL

FPLL

RIF AMPLIFIER

AGC DETECTOR

2 × f

VCO TWD

AND TV AFC

INTERCARRIER

MIXER

AND

AFC/RIF

level

14 1916156520 17

TV AFC

DETECTOR

VIDEO DEMODULATOR AND AMPLIFIER

TDA9809M

LEVEL DETECTOR

FM-PLL DEMODULATOR AND

AF SIGNAL PROCESSING

GNDV

INTERNAL

VOLTAGE

STABILIZER

RADIO

AFC

SOUND

TRAP

1.1 V (p-p)

video

1 V (p-p)

oAF

LP0

LP2

soft mute threshold

adjust

o(int)

4.5 MHz

10.7 MHz

Fig.1 Block diagram.

9181110

iFM

forced

mute

DEC

10.7 MHz ceramic resonator

MHA957

TDA9809M

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM radio demodulator

PINNING

SYMBOL PIN DESCRIPTION

iVIF1

iVIF2

LP0 3 logic port 0 V

iRIF

VAGC

PLL

oAF

LP2

DEC

o(int)

iFM

TAGC 12 TV/radio tuner AGC output V

o(vid)

AFC 14 AFC/RIF level output VCO1 15 VCO1 resonance circuit VCO2 16 VCO2 resonance circuit GND 17 ground CERRES 18 ceramic resonator 10.7 MHz V

TADJ 20 tuner AGC takeover point adjustment

1 VIF differential input signal voltage 1 2 VIF differential input signal voltage 2

4 RIF input 5 VIF AGC capacitor 6 PLL loop ﬁlter 7 audio output

logic port 2 and soft mute threshold

adjustment

9 decoupling capacitor 10 intercarrier output voltage 11 sound intercarrier input voltage

13 composite video output voltage

19 supply voltage

handbook, halfpage

iVIF1

iVIF2

LP0

iRIF

VAGC

PLL

oAF LP2

DEC

o(int)

TDA9809M

6 7 8 9

MHA958

Fig.2 Pin configuration.

TDA9809M

TADJ

20 19

CERRES

GND

VCO2 VCO1

AFC

o(vid)

TAGC

iFM

FUNCTIONAL DESCRIPTION

The TDA9809M is comprised of the functional blocks shown in Fig.1:

• Vision IF amplifier and AGC detector

• Tuner (TV/radio) and VIF AGC

• Frequency Phase-Locked Loop (FPLL) detector

• VCO, Travelling Wave Divider (TWD) and TV AFC

• Video demodulator and amplifier

• Intercarrier mixer

• RIF amplifier and AGC detector

• FM-PLL demodulator, level detector and radio AFC

• Audio Frequency (AF) signal processing

• Internal voltage stabilizer

• Logic.

1998 Jan 08 5

Vision IF ampliﬁer and AGC detector

The vision IF amplifier contains three AC-coupled differential amplifier stages. Each differential stage includes a feedback network controlled by emitter degeneration.

The AGC detector generates the required VIF gain control voltage for constant video output by charging/discharging the AGC capacitor. The sync level of the video signal is therefore detected for negative video modulation.

Tuner (TV/radio) and VIF AGC

For TV operation, the AGC capacitor voltage is converted to an internal IF control signal and then fed to the tuner AGC to generate the tuner AGC output current at pin TAGC (open-collector output). The tuner AGC takeover point can be adjusted at pin TADJ. This allows the tuner to be matched to the SAW filter in order to achieve the optimum IF input level.

For FM radio operation, an AGC detector is provided to obtain some adjacent channel protection.

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM radio demodulator

Frequency Phased-Locked Loop detector (FPLL)

The VIF amplifier output signal is fed, via a limiting amplifier, to a frequency and phase detector. During acquisition, the frequency detector generates a DC current that is proportional to the difference in frequency between the input signal and the VCO signal.

After frequency lock-in, the phase detector generates a DC current proportional to the phase difference between the input signal and the VCO signal. The DC current generated by the frequency or phase detector is converted to a DC voltage via the loop filter, which controls the VCO frequency.

VCO, TWD and TV AFC

The VCO operates with a resonance circuit (with L and C in parallel) at double the Picture Carrier (PC) frequency. The VCO is controlled by two integrated variable capacitors. The control voltage required to tune the VCO from its free-running frequency to double the PC frequency is generated by the FPLL and fed via the loop filter to the first variable capacitor. This control voltage is amplified and converted into a current which represents the AFC output signal. At the centre frequency, the AFC output current is zero.

The TWD divides the oscillator signal by 2 and generates two differential output signals with a 90° phase difference independent of frequency.

TDA9809M

Intercarrier mixer

The intercarrier mixer is realized by a multiplier. The sound IF signal passes through the vision IF SAW

filter and the composite IF signal is then fed to the intercarrier mixer. Here, the IF signal is multiplied by the 90° TWD output signal to convert the sound IF to the intercarrier frequency. By using this quadrature detection, the low frequency video signals are removed. The mixer output signal is fed, via a high-pass filter used to attenuate the video signal components, at output pin 10.

RIF ampliﬁer and AGC detector

The radio IF amplifier amplifies the 10.7 MHz radio IF signal. This signal is supplied by the tuner and is fed to the RIF input (pin 4) via a matching circuit and a ceramic band-pass filter. This amplifier contains two stages. The first stage, a conventional 0 dB differential amplifier designed for optimal dynamic range, is followed by a switchable differential amplifier stage with a gain of 10 dB. Either the radio IF or the TV IF signal can be selected at the output (pin 10).

The RIF output signal is fed via ceramic band-pass filters to the FM-PLL demodulator and the radio IF AGC detector. The AGC threshold is very high and is designed to obtain some adjacent channel protection. The AGC detector output is fed to the tuner AGC output stage (pin 12) to control the tuner.

Video demodulator and ampliﬁer

Video demodulation is realized by a multiplier designed for low distortion and wide bandwidth. The vision IF input signal and the ‘in-phase’ signal of the travelling wave divider output are multiplied together.

The demodulated output signal is fed to the video amplifier via an integrated low-pass filter used to attenuate the carrier harmonics. This is an operational amplifier with internal feedback and wide bandwidth. A low-pass filter is integrated to attenuate the carrier harmonics. The video output signal at V modulation, in order to achieve 1 V (p-p) at the sound trap output.

1998 Jan 08 6

is 1.1 V (p-p) for nominal vision IF

o(vid)

FM-PLL demodulator, level detector and radio AFC

The FM-PLL demodulator consists of a limiter and an FM phase-locked loop. The 8-stage internally AC-coupled limiter amplifies and limits the TV FM sound intercarrier or the radio FM intermediate frequency signal prior to demodulation. The limiter is designed for high sensitivity and AM suppression with low DC offset and needs no external pins for DC coupling.

Furthermore, the AF output signal can be force muted by connecting a resistor between pin 11 and ground. The soft mute function can be disabled by connecting a resistor between pin 11 and the power supply. See the application circuit in Fig.16.

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM radio demodulator

The FM-PLL consists of an integrated relaxation oscillator, an integrated loop filter and a phase detector. The oscillator is locked to the FM intercarrier signal output from the limiter. As a result of locking, the oscillator frequency tracks with the modulation of the input signal and the oscillator control voltage is superimposed on the AF voltage. The FM-PLL operates as an FM demodulator.

The level detector detects, rectifies and amplifies the output signals from the first 5 limiter stages. These signals are then summed and the composite signal passed through a low-pass filter, followed by a 6 dB output amplifier. A DC voltage dependent on the limiter input level is generated for controlling the behaviour of the AF soft mute. The 6 dB output amplifier can be switched off via the control logic and the level detector output signal fed to pin 14. Furthermore, the steepness of the level detector output signal tracks that of the power supply voltage.

The radio Automatic Frequency Control (AFC) stage is comprised of a 10.7 MHz phase shifting network, a phase detector (quadrature demodulator), a differential amplifier input stage (which receives the limiting amplifier output signal) and a current mode output stage.

A ceramic resonator is used for phase shifting. This permits alignment-free operation.

AF signal processing

TDA9809M

Soft mute occurs when the internal level detector output voltage is lower than the mute threshold voltage at pin 8 (provided an external resistor is not connected between the limiter input, pin 11, and the supply voltage). The mute stage reduces the AF signal by 25 dB, with an internal time constant of approximately 7 ms.

If a resistor is connected between pin 11 and ground (forced mute), the mute stage will reduce the AF signal by more than 70 dB with the same time constant.

Otherwise, the AF signal will not be reduced. The AF post-amplifier, which was designed to include a

rail-to-rail output stage, provides the required AF output level at pin 7.

Internal voltage stabilizer

The bandgap circuit generates a voltage of approximately

1.25 V internally, independent of supply voltage and temperature. A voltage regulator circuit connected to this voltage generates a constant 3.6 V which is used as an internal reference voltage.

Logic

The logic circuit detects the logic levels and threshold voltages at ports LP0 and LP2 and controls the internal functions as described in Table 2.

The AF signal processing stage consists of a pre-amplifier for the FM-PLL demodulator output signal, an AF source selector, a soft and forced mute stage with an integrated time constant and an AF post-amplifier.

The FM demodulator output signal is pre-amplified by an operational amplifier (30 dB gain) with internal feedback, high gain and high common mode rejection. The feedback circuit, together with external capacitor C pin 9, keeps the DC level at the pre-amplifier output constant (2.3 V). An external resistor connected in series with C The low-pass filter characteristic (130 kHz bandwidth) of the amplifier reduces the harmonics of the IF signal at the sound signal output.

provides a gain reduction capability.

DEC

connected to

DEC

1998 Jan 08 7

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

TDA9809M

radio demodulator

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

TAGC

stg

amb

Notes

1. I

= 102 mA; T

2. Machine model class B (L = 2.5 µH).

supply voltage (pin 19) maximum chip temperature of

− 5.5 V

130 °C; note 1

input voltage at pins 1 to 9, 11, 12, 14

and 17 to 20 short-circuit time − 10 s tuner AGC output voltage 0 13.2 V storage temperature −25 +150 °C ambient operating temperature −20 +70 °C electrostatic handling note 2 −300 +300 V

=70°C; R

amb

th(j-a)

= 120 K/W.

THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS VALUE UNIT

th(j-a)

thermal resistance from junction to ambient in free air 120 K/W

CHARACTERISTICS

=5V; T

i(FM)(rms)

B/G: 10%; video signal in accordance with

=25°C; see Table 1 for input frequencies; input level V

amb

i(VIF)(rms)

= 10 mV (sync-level for B/G);

= 10 mV; IF input from 50 Ω via broadband transformer 1 : 1; video modulation DSB; residual carrier

“CCIR, line 17”

“NTC-7 Composite”

; test circuit in Fig.15 used for

measurements; unless otherwise speciﬁed.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply (pin 19)

supply voltage note 1 4.5 5 5.5 V supply current TV mode 76 89 102 mA

radio mode 29 35 41 mA power-down mode 5 8 11 mA

Television mode

ISION IF AMPLIFIER (PINS 1 AND 2)

i(VIF)(rms)

minimum vision IF input signal voltage

fPC= 38.9 or 45.75 MHz;

−1 dB video at output

− 60 100 µV

(RMS value) maximum vision IF

input signal voltage

= 38.9 or 45.75 MHz;

+1 dB video at output

120 200 − mV

(RMS value)

1998 Jan 08 8

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

TDA9809M

radio demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

∆V

o(int)

VIF(CR)

VIF(−3dB)

i(dif)

TRUE SYNCHRONOUS VIDEO DEMODULATOR; note 3 f

VCO(max)

/∆T oscillator drift as a

∆f

osc

VCO(rms)

cr(PC)

acq

i(VIF)(rms)

COMPOSITE VIDEO AMPLIFIER (PIN 13; SOUND CARRIER OFF) V

o(video)(p-p)

V/S ratio of video

sync

clu

cll

internal IF amplitude difference between

within AGC range;

∆f = 4.5 MHz

− 0.7 1 dB

picture and sound carrier

VIF gain control range see Fig.3 65 70 − dB

−3 dB VIF bandwidth lower limit − 15 25 MHz upper limit 70 100 − MHz

differential input

note 2 1.7 2.2 2.7 kΩ

resistance differential input

note 2 1.2 1.7 2.5 pF

capacitance DC input voltage note 2 − 3.4 − V

maximum oscillator

f=2f

125 130 − MHz frequency for carrier regeneration

−6K−1

function of

oscillator is free-running; I

= 0; note 4

AFC

−−±20 × 10

temperature oscillator voltage

swing at pins 15 and 16

fPC= 38.9 MHz 50 80 110 mV f

= 45.75 MHz 40 65 90 mV

(RMS value) picture carrier capture

±1.4 ±1.8 − MHz range

acquisition time Black Level (BL) = 70 kHz

−−30 ms

note 5

minimum vision IF

maximum IF gain; note 6 − 30 70 µV input signal voltage for PLL to be locked (RMS value)

output signal voltage

see Fig.7 0.97 1.1 1.23 V (peak-to-peak value)

1.9 2.33 3.0 − (black-to-white) to sync level

sync voltage level 1.4 1.5 1.6 V upper video clipping

VP− 1.1 VP− 1 − V

voltage level lower video clipping

− 0.7 0.9 V voltage level

output resistance note 2 −−10 Ω

1998 Jan 08 9

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

TDA9809M

radio demodulator

SYMBOL P ARAMETER CONDITIONS MIN. TYP. MAX. UNIT

bias(int)

o(sink)(max)

o(source)(max)

∆V

o(CVBS)

∆V

o(bl)(BG)

dif

v(−1dB)

v(−3dB)

S/N

S/N unweighted

IM(0.92/1.1)

IM(2.76/3.3)

r(vc)(rms)

H(sup)

H(spur)

PSRR power supply ripple

internal DC bias current for emitter-follower

maximum AC and DC output sink current

maximum AC and DC output source current

deviation of CVBS output signal voltage

black level tilt in B/G

50 dB gain control −−0.5 dB 30 dB gain control −−0.1 dB gain variation; note 7 −−1%

standard differential gain

“CCIR, line 330”

“NTC-7 Composite”

differential phase

“CCIR, line 330”

“NTC-7 Composite”

−1 dB video bandwidth CL< 50 pF; RL>1kΩ;

AC load

−3 dB video bandwidth CL< 50 pF; RL>1kΩ;

AC load

weighted

see Fig.4 and note 8 54 58 − dB

signal-to-noise ratio

see Fig.4 and note 8 47 51 − dB

signal-to-noise ratio intermodulation

attenuation at ‘blue’ intermodulation

attenuation at ‘yellow’ intermodulation

attenuation at ‘blue’ intermodulation

attenuation at ‘yellow’ residual vision carrier

(RMS value) harmonics

fIM= 0.92 or 1.1 MHz; see Fig.5 and note 9

= 0.92 or 1.1 MHz;

see Fig.5 and note 9 fIM= 2.76 or 3.3 MHz;

see Fig.5 and note 9 f

= 2.76 or 3.3 MHz;

see Fig.5 and note 9 fundamental wave and

harmonics

note 10a 35 40 − dB suppression in video signal

spurious element

note 10b 40 −− dB suppression

video signal; grey level; see rejection at pin 13

Fig.9

2.2 3.0 − mA

1.6 −− mA

2.9 −− mA

− 25 %

− 2 4 deg

56− MHz

78− MHz

52 58 − dB

54 60 − dB

52 58 − dB

54 60 − dB

− 25 mV

30 35 − dB

1998 Jan 08 10

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

TDA9809M

radio demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VIF-AGC DETECTOR (PIN 5) I

dch

res(AGC)(r)

res(AGC)(f)

TV TUNER AGC (PIN 12) V

i(rms)

o(max)

sat

∆V

/∆T variation of takeover

TOP

sink

∆G

TV AFC DETECTOR (PIN 14); see Fig.6 and note 12 CR

stps

∆f

/∆T frequency variation

o(max)

o(min)

o(source)

o(sink)

∆I

r(mod)(p-p)

charge current note 7 0.75 1 1.25 mA discharge current 15 20 25 µA AGC response time to

note 11 − 0.05 0.1 ms/dB a rising VIF step

AGC response time to

− 2.2 3.5 ms/dB

a falling VIF step

IF input signal voltage for minimum onset of

input at pins 1 and 2;

=22kΩ; I12= 0.4 mA

TOP

− 25 mV

tuner takeover (RMS value)

IF input signal voltage for maximum onset of

input at pins 1 and 2;

=0Ω; I12= 0.4 mA

TOP

50 100 − mV

tuner takeover (RMS value)

tuner takeover point

=13kΩ; I12= 0.4 mA 5 − 20 mV

TOP

accuracy (RMS value) maximum output

voltage

from external source;

note 2

−−13.2 V

saturation voltage I12= 1.5 mA −−0.2 V

I12= 0.4 mA − 0.03 0.07 dB/K point with temperature

sink current see Fig.3

no tuner gain reduction; V

= 13.2 V

maximum tuner gain

−−1 µA

1.5 2 2.6 mA

reduction

IF slip by automatic gain control

control steepness ∆I14/∆f

tuner gain current from

− 68 dB

20 to 80%

fPC= 38.9 MHz; note 13 0.5 0.75 1.0 µA/kHz

= 45.75 MHz; note 13 0.4 0.65 0.9 µA/kHz

= 0; note 4 −−±20 × 10

AFC

−6K−1

with temperature output voltage upper

limit output voltage lower

see Fig.6 without external

components

VP− 0.6 VP− 0.3 − V

− 0.3 0.6 V

limit output source current 150 200 250 µA output sink current 150 200 250 µA residual video

− 20 30 µA modulation current (peak-to-peak value)

1998 Jan 08 11

Philips Semiconductors Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

TDA9809M

radio demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

INTERCARRIER MIXER (PIN 10) V

o(intercarrier)(rms)

IF intercarrier level (RMS value)

−3dB

−3 dB intercarrier

bandwidth

r(SC)(rms)

residual sound carrier (RMS value)

r(VC)(rms)

residual vision carrier (RMS value)

H(sup)

suppression of video signal harmonics

bias(int)

output resistance note 2 − 25 −Ω DC output voltage − 2.0 − V DC internal bias

current for emitter-follower

o(sink)(max)

maximum AC and DC output sink current

o(source)(max)

maximum AC and DC output source current

LIMITER AMPLIFIER (PIN 11); note 15 V

i(FM)(rms)

input signal voltage for lock-in (RMS value)

input signal voltage (RMS value)

allowed input signal voltage (RMS value)

AM suppression 50 µs de-emphasis;

input resistance note 2 480 600 720 Ω DC input voltage − 2.65 − V

FM-PLL DEMODULATOR f

cr(PLL)

hr(PLL)

acq

catching range of PLL upper limit 7.0 −− MHz

holding range of PLL upper limit 9.0 −− MHz

acquisition time −−4 µs

sound carrier 1 (SC1);

− 32 − mV

SC2off; note 14 upper limit 7.5 9 − MHz

fundamental wave and

− 25 mV

harmonics fundamental wave and

− 25 mV

harmonics intercarrier mode;

≤ 5 MHz

video

39 −− dB

2.7 3.4 − mA

1.5 2.0 − mA

2.5 −− mA

−−100 µV

SN+

-------------N

weighted 40 dB=

− 250 500 µV

200 −− mV

46 50 − dB

AM: f

= 1 kHz; m = 0.3

mod

referenced to 27 kHz (54% FM deviation)

lower limit −−4.0 MHz

lower limit −−3.5 MHz

1998 Jan 08 12

+ 28 hidden pages