TDA4691 Datasheet, PDF (8/26 Pages) NXP Semiconductors – Sync Processor with Clock SPC

Philips Semiconductors
Sync Processor with Clock (SPC)
Preliminary specification
TDA4691
CHARACTERISTICS
V_P1 = 8 V; V_P2 = 5 V; measured at T_amb = +25 °C; unless otherwise specified; application see Figs 10 and 11; video
input signal referenced to CCIR standard.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supply (pins 19 and 12; all voltages are measured with regard to ground (pins 3 and 8))
V₁₉
supply voltage
I_P1
supply current
V₁₂
supply voltage
I_P2
supply current
P_tot
total power dissipation
7.2
8.0
−
20
same rise time as V₁₉ 4.5
5.0
−
15
−
260
Sync separator (pin 20)
V_20(p-p)
V_20(p-p)
R_G
I₂₀
I₂₀
input voltage (peak-to-peak value)
sync amplitude (peak-to-peak value)
source resistor of generator
current during sync
current during remaining time
AC coupled
−
1
0.1
−
−
−
−
−30
−
1
Black level (pin 1)
SLH
slicing level H
SLV
slicing level V
−
50
−
50
8.8 V
30
mA
5.5 V
30
mA
430 mW
2
V
0.6 V
1
kΩ
−
µA
−
µA
−
%
−
%
Sync output (pin 9)
V₉
no sync
I₉ = +1 mA
V₉
positive sync
I₉ = −1 mA
C_L
load capacitance
t₁
time delay between pin 20 and pin 9
see Fig.3
t₂
time delay between pin 20 and pin 9
see Fig.3
Phase detector (pins 16 and 17)
f₀
nominal sync frequency
f₀’
f_osc : 864 = phiref
I₁₇
current at sync time
(fast and normal time constant)
I₁₇
I₁₆
V₁₇
V₁₆
∆f₀/∆V₁₆
current at sync time (slow time constant)
current at sync time
filter 2 voltage
time constant T₁
filter 1 voltage
VCO sensitivity
see VCO
13.5 MHz VCO (pin 15)
R₁₅
V₁₅
I₁₅
g_VCO
f₀ defining resistor
pin voltage (V₁₉ dependent)
current for 13.5 MHz
transconductance at f₀
see Fig.4(a)
see Fig.4(a)
−
0.3
−
V
2.7
−
−
−
V₁₂
V
40
pF
100
200
500 ns
100
300
500 ns
−
15.625 −
kHz
−
15.625 −
kHz
−
±240 −
µA
−
±80
−
µA
−
±2
−
mA
1.5
3
4.5 V
1.5
3
4.5 V
−
360
−
kHz/V
−
2.9
−720
15.2
3.75
3
−800
−
−
3.1
−880
18.6
kΩ
V
µA
kHz/µA
September 1993
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