Philips Semiconductors
Product specification
Multistandard vision and sound-IF PLL with
DVB-IF processing
TDA9819
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
AFC circuit (DVB mode)
SUS
control steepness ∆I23/∆f
f0 = 48.75 MHz; see Fig.12 0.7
and note 17
0.98
1.3
µA/kHz
µA/kHz
SEU
f0 = 43.0 MHz; see Fig.12
and note 17
0.45
0.70
0.95
DVB output signal (IF input to DVB output)
V18(p-p)
output voltage
CL < 15 pF; RL > 5 kΩ; with 1.8
2.1
2.4
V
(peak-to-peak value)
internal AGC
V18DC
B
DC voltage
−
2.5
12
17
40
−
−
−
−
V
−1 dB bandwidth
−3 dB bandwidth
CL < 15 pF; RL > 5 kΩ
11
−
MHz
MHz
dB
αC(DVB)
αH
fundamental input signal and
IF harmonics
35
suppression of in-band
harmonics
2.0 V (p-p) output voltage
30
35
−
dB
Notes to the characteristics
1. Values of video and sound parameters are decreased at VP = 4.5 V.
2. This parameter is not tested during production and is only given as application information for designing the television
receiver.
3. Source impedance: 2.3 kΩ in parallel to 12 pF (SAW filter); fIF = 45 MHz.
4. Loop filter 330 Ω/220 nF; loop bandwidth for M standard: BL ≈ 70 kHz (natural frequency fn ≈ 12 kHz; damping factor
d ≈ 2.9; loop bandwidth for B/G and L standard: BL ≈ 80 kHz (natural frequency fn ≈ 13 kHz; damping factor d ≈ 3.2;
calculated with sync level within gain control range). Resonance circuit of VCO: Q0 > 50; Cext and Cint see Fig.12.
5. Temperature coefficient of external LC-circuit is equal to zero.
6. Vi IF = 10 mV RMS; ∆f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video
modulation.
7. Vi IF signal for nominal video signal.
8. Offset current measured between pin 7 and half of supply voltage (VP = 2.5 V) under the following conditions:
no input signal at VIF input (pins 1, 2, 4 and 5) and VIF amplifier gain at minimum (V28 = VP). Due to sample-and-hold
mode of the FPLL in L standard, the leakage current of the loop filter capacitor (C = 220 nF) should not exceed
500 nA.
9. Measurements taken with SAW filter M3951M and M9352M (Siemens, M standard);
frequency range = 10 kHz to 5 MHz. Sound carrier ON; PC/SC ratio 7 dB (transmitter); modulation VSB.
10. The 7 dB buffer gain accounts for 1 dB loss in the sound trap. Buffer output signal is typical 2 V (p-p), in event of
CVBS video amplifier output typical 1 V (p-p). If no sound trap is applied a 330 Ω resistor must be connected from
output to input (from pin 21 to pin 22).
11. The leakage current of the AGC capacitor should not exceed 1 µA at M and B/G standard respectively 10 nA current
at L standard. Larger currents will increase the tilt.
12. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 10). B = 5 MHz weighted
in accordance with “CCIR 567”.
1998 Jul 14
18
NXP [ NXP ]
