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PDF U3660M Data sheet ( Hoja de datos )
| Número de pieza | U3660M | |
| Descripción | Baseband Delay Line (64 Us) | |
| Fabricantes | TEMIC Semiconductors | |
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Baseband Delay Line (64 ms)
U3660M-B
Description
The U3660M is an integrated baseband delay line circuit. It provides a delay of 64 ms for the color difference signals,
±(R-Y) and ±(B-Y), in multi-standard TVs.
Features
D One line delay time, addition of delayed and non-
delayed output signals
D Adjustment-free application, VCO without external
components
D Handles negative or positive colour-difference input
signals
D Clamping of ac-coupled input signals [±(R-Y)
and ±(B-Y)]
D Line-locked by the sandcastle pulse
D No crosstalk between SECAM colour carriers
(diaphoty)
D Comb filtering functions for NTSC colour-difference
signals
D Correction of phase errors in the PAL system
Block Diagram
Ref
13
Bias
"(B–Y)
14 Clamping
"(R–Y)
16 Clamping
Vref
Line memory
Shift register
Line memory
S+H
LPF
+
S+H
LPF
+
"12 (B–Y)
"11 (R–Y)
VDD2 1
SC detector
GND2 3
5
Vref
fsc
PLL
Control
3 MHz
9 VDD1
Clock generator
10 GND1
SSC pulse
Figure 1. Block diagram
94 8223
TELEFUNKEN Semiconductors
Rev. A2, 13-Dec-96
1 (7)
1 page  
Internal Pin Circuits
U3660M-B
14,16
94 8678
Figure 4. Colour difference signal inputs
94 8675
5
Figure 6. Sandcastle pulse input
11,12
94 8676
Figure 5. Colour difference signal outputs
13
94 8677
Figure 7. Internal reference voltage
TELEFUNKEN Semiconductors
Rev. A2, 13-Dec-96
5 (7)
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet U3660M.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| U3660M | Baseband Delay Line (64 Us) | TEMIC Semiconductors |
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