TDA4665 Datasheet, PDF (2/12 Pages) NXP Semiconductors – Baseband delay line

Philips Semiconductors
Baseband delay line
Product specification
TDA4665
FEATURES
• Two comb filters, using the switched-capacitor
technique, for one line delay time (64 µs)
• Adjustment-free application
• No crosstalk between SECAM colour carriers (diaphoty)
• Handles negative or positive colour-difference input
signals
• Clamping of AC-coupled input signals (±(R−Y) and
±(B−Y))
• VCO without external components
• 3 MHz internal clock signal derived from a 6 MHz CCO,
line-locked by the sandcastle pulse (64 µs line)
• Sample-and-hold circuits and low-pass filters to
suppress the 3 MHz clock signal
• Addition of delayed and non-delayed output signals
• Output buffer amplifiers
• Comb filtering functions for NTSC colour-difference
signals to suppress cross-colour.
GENERAL DESCRIPTION
The TDA4665 is an integrated baseband delay line circuit
with one line delay. It is suitable for decoders with
colour-difference signal outputs ±(R−Y) and ±(B−Y).
QUICK REFERENCE DATA
SYMBOL
V_P1
V_P2
I_P(tot)
V_i(p-p)
G_v
PARAMETER
analog supply voltage (pin 9)
digital supply voltage (pin 1)
total supply current
±(R−Y) input signal PAL/NTSC (peak-to-peak value; pin 16)
±(B−Y) input signal PAL/NTSC (peak-to-peak value; pin 14)
±(R−Y) input signal SECAM (peak-to-peak value; pin 16)
±(B−Y) input signal SECAM (peak-to-peak value; pin 14)
gain V_o / V_i of colour-difference output signals
V₁₁ / V₁₆ for PAL and NTSC
V₁₂ / V₁₄ for PAL and NTSC
V₁₁ / V₁₆ for SECAM
V₁₂ / V₁₄ for SECAM
MIN.
4.5
4.5
−
−
−
−
−
TYP.
5
5
5.5
525
665
1.05
1.33
MAX.
6
6
7.0
−
−
−
−
UNIT
V
V
mA
mV
mV
V
V
5.3
5.8
6.3
dB
5.3
5.8
6.3
dB
−0.6 −0.1 +0.4 dB
−0.6 −0.1 +0.4 dB
ORDERING INFORMATION
TYPE
NUMBER
TDA4665
TDA4665T
NAME
DIP16
SO16
PACKAGE
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil)
plastic small outline package; 16 leads; body width 3.9 mm
VERSION
SOT38-4
SOT109-1
1996 Dec 17
2