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TDA1318 데이터시트(Datasheet) 2 Page - NXP Semiconductors

부품명 TDA1318
상세내용  DCC read amplifier
PDF  24 Pages
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제조사  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
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 2 page
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April 1996
2
Philips Semiconductors
Preliminary specification
DCC read amplifier
TDA1318
FEATURES
• Differential inputs for a low-power head configuration
• Low-noise current sources for the sense currents of the
DCC head
• Reduced power consumption by separate on/off
switching of the circuits and sense current of the DCC
and CC parts of the IC
• The IC can be used with both the first and second
generation DCC digital signal processing ICs
• High-impedance outputs in the OFF state so that the
outputs of the ICs can be connected in parallel for dual
decks or for decks with electrical auto-reverse heads
• AGC of DCC preamplifiers (can be switched off)
• Possibility of analog audio via DCC preamplifiers
(analog via digital readers, ADR mode)
• Single 5 V supply.
GENERAL DESCRIPTION
The TDA1318 amplifies, filters and multiplexes signals
arriving from magneto-resistive thin film heads (MRHs)
which are suitable for DCC (Digital Compact Cassette)
and CC (Compact Cassette) systems. The device also has
current sources to provide sense currents through the
DCC-MRHs and two amplifiers for magnetic feedback and
biasing.
QUICK REFERENCE DATA
Notes
1. In the conditions column 0 = LOW; 1 = HIGH.
2. ADR = 1 when pin INL and/or INR is connected to VSS.
SYMBOL
PARAMETER
CONDITIONS(1)
MIN.
TYP.
MAX.
UNIT
CS
SD
ADR
VDD
supply voltage
−−
4.5
5.0
5.5
V
VCCM
supply voltage feedback amplifiers
−−
4.5
5.0
5.5
V
IDDDCC
supply current DCC mode (note 2)
1
1
0
31
41
mA
IDDDCCadr
supply current DCC mode (ADR)
1
1
1
31
41
mA
IDDCC
supply current CC mode
1
0
0
9.7
13
mA
IDDCCadr
supply current CC mode (ADR)
1
0
1
17.8
24.5
mA
ICCM
supply current feedback amplifiers
1
1
1
8.5
12
mA
10
0
10
1
IDD
supply current (ADC reference ON)
0
1
−−
1.6
2.2
mA
IDD(Q)
total quiescent current in OFF mode
0
0
−−
300
µA
Ptot
total power dissipation, DCC mode
−−
250
mW
Tamb
operating ambient temperature
−−
−30
+85
°C




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