U4935B Datasheet, PDF (3/16 Pages) TEMIC Semiconductors – SECAM Decoder

U4935B
1500
1250
1000
750
500
250
0
0
96 11702
25 50 75 100 125 150
Ambient temperature T_amb ( °C )
Figure 3. Thermal derating curve of the package
(maximum rating)
Electrical Characteristics
V_S = 8 V, T_amb = 25°C, reference point Pin 6, unless otherwise specified
Test conditions: V_{pin 1} = 4.75 V, V_{pin 16} = 4 V, unless otherwise specified
Parameters
DC supply
Supply voltage V_S
Supply current I_S
Bell filter
Resonance frequency
Bandwidth
Demodulator
Output DC level during blanking
Black level error –(R–Y)
Black level error –(B–Y)
–(R–Y) output signal amplitude
(peak-to-peak value)
–(B–Y) output signal amplitude
(peak-to-peak value)
Test Conditions / Pins
Symbol
Note 1
Pin 3
V_S
Pin 3
I_S
f = 4.0 - 5.0 MHz sweep
f_BO
signal with 20 mV
peak-to-peak amplitude at
the CVBS input
(see note 2, page 5), Pin 2
f = 4.0 - 5.0 MHz sweep
f_BW
signal with 20 mV
peak-to-peak amplitude at
the CVBS input, Pin 2
Pins 9 and 10
Black/ white signal at the
CVBS input
(see note 4, page 5), Pin 9
Black/ white signal at the
CVBS input
(see note 4, page 5), Pin 10
(see note 1, page 5), Pin 9
(see note 1, page 5), Pin 10
V_O
DV_RB
DV_BB
V_R–Y
V_B–Y
Min. Typ. Max. Unit
7.5 8.0 8.5 V
18 24 30 mA
4.236 4.286 4.336 MHz
250 320 368 kHz
2.1 2.8 3.5 V
–15
+15 mV
–50
+20 mV
0.85 1.0 1.15 V
1.05 1.24 1.36 V
TELEFUNKEN Semiconductors
3 (16)
Rev. A1, 28-Jan-97
Preliminary Information