U3665M TEMIC Semiconductors, U3665M Datasheet

no-image

U3665M

Manufacturer Part Number
U3665M
Description
Baseband Delay Line 64 us (Improved Version)
Manufacturer
TEMIC Semiconductors
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
U3665M
Manufacturer:
TEMIC
Quantity:
14
Part Number:
U3665M
Manufacturer:
NS
Quantity:
1 000
Part Number:
U3665M
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
TELEFUNKEN Semiconductors
Rev. A1, 17-Jul-96
Baseband Delay Line 64
Application
In TV sets, the integrated baseband delay line circuit is suitable for decoders with color-difference signal outputs
Description
The integrated delay line circuit U3665M is suitable for
all chroma decoders with baseband
outputs. It is suitable for PAL-, SECAM- and
NTSC-signals as well. The U3665M contains two
separate delay lines for processing (R–Y)-output and
(B–Y)-output separately. The delay is performed by inter-
nally switched capacitors. On-chip postfiltering avoids
the need for external filter components. In the case of the
U3665M, the postfilter is tuned to Bessel-characteristic.
Features
D
D
D
D
One line delay time, addition of delayed and
non-delayed output signals
Adjustment-free application, VCO without
external components
Handles negative or positive color-difference
input signals
Clamping of AC-coupled input signals
[ (R–Y) and (B–Y)]
"
"
GND2
V
(B–Y)
(R–Y)
DD2
16
14
1
3
SC pulse
Clamping
Clamping
5
Bias
SC detector
Preliminary Information
Line memory
Shift register
Line memory
color-difference
Figure 1. Block diagram
m
f
SC
PLL
s (Improved Version)
V
V
Ref
Ref
A summing circuitry combines the information of
adjacent TV-lines, thus giving an interpolated sum for the
PAL-system, storing preceeding lines for the SECAM-
system and providing a comb-filtered output for
NTSC-signals. Due to internally generated timing,
synchronization is easily done by feeding a line-frequent
impulse (usually the SC-impulse) to the sync-input of
the IC.
D
D
D
D
Line-locked by the sandcastle pulse
No crosstalk between SECAM color
carriers (diaphoty)
Comb-filtering functions for NTSC color-
difference signals
Correction of phase errors in the PAL system
Control
S+H
S+H
LPF
LPF
Clock generator
+
+
3 MHz
94 8846
U3665M
12
10
11
9
"
V
"
GND1
(B–Y)
(R–Y)
DD1
1 (9)

Related parts for U3665M

U3665M Summary of contents

Page 1

... Application In TV sets, the integrated baseband delay line circuit is suitable for decoders with color-difference signal outputs Description The integrated delay line circuit U3665M is suitable for all chroma decoders with baseband outputs suitable for PAL-, SECAM- and NTSC-signals as well. The U3665M contains two separate delay lines for processing (R– ...

Page 2

... U3665M Ordering Information Extended Type Number U3665M-MDP U3665M-MFP Pin Description 1 V DD2 2 NC GND2 10649 Figure 2. Connection diagram Absolute Maximum Ratings Reference point Pin 3, 10, unless otherwise specified Parameters Supply voltage (Pin 9) Supply voltage (Pin 1) Voltage on Pins 5, 11, 12, 14 and 16 Output current, (Pin 11, Pin 12) ...

Page 3

... V G –0 (n) V (n+1) W < 300 V gen noise Pin 11 63. load Pin 11 load Pin 11, 12 Pin slice U3665M Typ. Max. Unit 5.0 5.5 V 5.0 5.5 V 3.5 8 0.525 1.0 V 0.665 1.0 V 1.05 2.0 V 1.33 2 1.45 V 1. +0 400 6.0 6.5 ...

Page 4

... U3665M SC-impulse Internal clamping 95 10355 BGP (9) Preliminary Information BGP H-pulse m 0 1.6 s Figure 3. Timing of internal clamping Figure 4. Restrictions to SC pulse No higher than least 1 10226 TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 ...

Page 5

... V 11,12 U3661M: internal postfilter with Butterworth characteristic V 11,12 U3665M: internal postfilter with Bessel characteristic Figure 5. Influence of internal postfilters on siganl outputs TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 Preliminary Information U3665M 95 11237 (9) ...

Page 6

... U3665M W +12 V 560 5V1 " (R–Y) Chroma 1 nF " decoder (B– pulse *)Depends on application ( pulse) 5 SC-impulse 6.8 k Figure 7. Application with 12 V SC-pulse 6 (9) Preliminary Information 2,4,6,7,8,13,15 16 Baseband delay line Figure 6. Typical application circuit Baseband delay line SC-impulse 10227 Figure 8. Application with 5 V SC-pulse ...

Page 7

... Internal Pin Circuits 14,16 Figure 9. Color-difference signal inputs 95 10359 Figure 10. Color-difference signal outputs TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 Preliminary Information 5 95 10356 Figure 11. Sandcastle-pulse input 1,9 11,12 Figure 12. Supply voltage V U3665M 95 10357 95 10358 , V DD2 DD1 7 (9) ...

Page 8

... U3665M Package Information Package DIP16 Dimensions in mm 1.64 1.44 Alternative Package SO16 Dimensions (9) Preliminary Information 20.0 max 19.8 max 4.8 max 0.5 min 0.58 2.54 0.48 17. 7.82 7.42 6.4 max 3.3 0.39 max 9.75 8.15 technical drawings technical drawings technical drawings ...

Page 9

... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 Preliminary Information unauthorized use. U3665M 9 (9) ...

Related keywords