U4935B Datasheet, PDF (2/16 Pages) TEMIC Semiconductors – SECAM Decoder

U4935B
Pin Description
Pin Symbol
Function
1 f_ref / ident f_ref / ident
2 Bell out Bell-filter output
3
V_S
8-V supply voltage
4 Band gap Band-gap reference voltage
5 Killer out SECAM killer output
6
7
GND
Bell_ref
* ^Ground
Bell-filter reference
voltage output
8 PLLref PLL reference
9 –(R–Y) –(R–Y) output
10 –(B–Y) –(B–Y) output
11 Black adj. B Black level adjust B - channel
12
PLL₁ PLL auto 2
13
PLL₂ PLL auto 1
14 Black adj. R Black-level adjust R - channel
15
SCP Sandcastle pulse input
16 CVBS CVBS input
fref / ident ₁
Bell filter
output ²
V_{S 3}
16 CVBS input
15 SCP input
14 Black adj. R
Band gap ₄
SECAM
killer out
5
U4935B
13 ^{PLL auto 1}
12 _{PLL auto 2}
GND ⁶
11 Black adj. B
Bell filter
ref
7
10 _{– (B–Y) output}
PLL ref 8
9 _{– (R–Y) output}
9611726
Figure 2. Connection diagram
Absolute Maximum Ratings
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
Symbol
Value
Unit
Supply voltage
Junction temperature
Storage temperature range
Electrostatic handling*)
Pin 3
VS
8.0
V
T_j
125
°C
all Pins
T_stg
V_ESD
" –40 to +125
200
°C
V
W *) Equivalent to discharging a 200 pF capacitor via a 0- resistor
Operating Range
Parameters
Supply voltage range
Ambient temperature
Symbol
Value
Unit
Pin 3
V_S
7.5 to 8.5
V
T_amb
–20 to +70
°C
Thermal Resistance
Parameters
Junction ambient (when soldered to PCB)
Symbol
R_thJA
Value
80
Unit
K/W
2 (16)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 28-Jan-97