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TEF6700HLのメーカーはNXP Semiconductorsです、この部品の機能は「Car radio tuner front-end」です。 |
部品番号 | TEF6700HL |
| |
部品説明 | Car radio tuner front-end | ||
メーカ | NXP Semiconductors | ||
ロゴ | |||
このページの下部にプレビューとTEF6700HLダウンロード(pdfファイル)リンクがあります。 Total 30 pages
www.DataSheet4U.com
INTEGRATED CIRCUITS
DATA SHEET
TEF6700HL
Car radio tuner front-end
for digital IF
Product specification
2003 Oct 21
1 Page Philips Semiconductors
Car radio tuner front-end for digital IF
Product specification
TEF6700HL
1 FEATURES
• FM mixer for conversion of FM RF (64 to 108 MHz and
US weather band) to IF of 10.7 MHz; the mixer provides
inherent image rejection and can be switched from ‘low’
injection to ‘high’ injection Local Oscillator (LO) via the
I2C-bus; two different mixer conversion gains can be
selected via the I2C-bus
• AGC PIN diode drive circuit for FM RF AGC; AGC
detection at FM mixer input; the AGC PIN diode drive
can be activated via the I2C-bus as a local function for
search tuning; AGC threshold is a programmable and
keyed function switchable via the I2C-bus
• Digital alignment circuit for bus controlled matching of
oscillator tuning voltage to FM antenna tank circuit
tuning voltage
• Buffer output for weather band flag
• FM IF linear amplifier with high dynamic input range;
amplifier gain can be switched to two different positions
via the I2C-bus
• FM IF AGC with multiplexed inputs for FM and In-Band
On-Channel Digital Audio Broadcast (IBOC DAB)
• Buffer amplifier for FM IBOC DAB IF bypassing second
IF filter can be activated via I2C-bus
• AM mixer 1 for conversion of AM RF to AM IF1
10.7 MHz
• AM RF PIN diode drive circuit and RF JFET
conductance control by AGC cascode drive circuit; AGC
threshold detection at AM mixer 1 and IF2 AGC input;
threshold is programmable via the I2C-bus
• AM noise blanker with blanking at AM IF2; AM noise
blanker can be deactivated via the I2C-bus
• AM mixer 2 for conversion of AM IF1 to AM IF2 450 kHz
• AM IF2 AGC
• Multiplexer to output AM IF2 AGC and FM IF AGC to a
car IF DSP IC (e.g. SAA7724H)
• AM/FM RF AGC monitor output
• Level detector for AM and FM with temperature
compensated output voltage; starting point and slope of
level output is programmable via the I2C-bus
• IF counter for AM IF2 and FM IF
• LC tuner oscillator providing mixer frequencies for FM
mixer and AM mixer 1
• Crystal oscillator providing mixer frequencies for AM
mixer 2 and reference for synthesizer PLL, IF count and
timing for Radio Data System (RDS) update
• Fast synthesizer PLL tuning system with local control for
inaudible RDS updating
• Timing function for RDS update algorithm and control
signal output for a car IF DSP IC (e.g. SAA7724H)
• Three hardware programmable I2C-bus addresses; pin
BUSENABLE; two software controlled flag outputs
• Several test modes for fast IC and system tests.
2 GENERAL DESCRIPTION
The TEF6700HL is a single chip car radio tuner for AM,
FM standard, FM IBOC DAB and weather band providing
gain controlled output of FM IF and AM IF2 for a car
IF DSP IC (e.g. SAA7724H) including the following
functions:
• AM double conversion tuner for LW/MW/SW (31 m,
41 m and 49 m bands) with IF1 = 10.7 MHz and
IF2 = 450 kHz
• FM single conversion tuner to an IF frequency of
10.7 MHz with integrated image rejection for US FM,
Europe FM, Japan FM, East Europe FM and weather
band reception; all bands can be selected using high
side or low side Local Oscillator (LO) injection
• Tuning system includes VCO, crystal oscillator and
PLL synthesizer on one chip.
3 ORDERING INFORMATION
TYPE NUMBER
TEF6700HL
NAME
LQFP64
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm
VERSION
SOT314-2
2003 Oct 21
3
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18
AMMIX1IN
17 15
1st AM
MIXER
VAMCAS
VAMCASFB
IAMAGC
TAFAMAGC
TRFAMAGC
MIX1OUT1
MIX1OUT2
19
20
21
22
23
13
14
24
VREFFMMIX
FMMIXIN1
RFGND
FMMIXIN2
WBFLAG
25
26
28
29
30
IFMAGC
31
AGCBUF
AM
RF AGC
90°
GAIN
FM
I/Q MIXER
WB
FM
AGC
threshold
WB/FM/
Japan
AGC
BUFFER
54 46
AM NOISE
DETECTOR
N2
:5/10
:1/:2/:3
N1
11 10 12 9 8 2 1 6 5 4 3
2nd AM
MIXER
AM IF
AGC
64 63
:2
FM
GAIN
IBOC
AM
FM IF
AGC
FM
TEF6700HL
IF
MUX
AM/FM
IF
COUNT
AM/FM
LEVEL
LEVEL
DAA
SEQUENTIAL
CIRCUIT FOR
RDS UPDATING
32
DAAOUT
ANT
DAA
35
TUNING SYSTEM
36 33 34 37
38 39
40 41 42
VCO
43 44 45
POWER
SUPPLY
47 48
7, 27
62
IFOUT
60
XTALGND
XTAL- 59 XTAL2
OSC 58 XTAL1
56
VLEVEL
I2C-
BUS
55
AFHOLD
16 SWPORT1
57 SWPORT2
53
SCL
52
SDA
51 BUSENABLE
50 ADDRSEL
61
IREF
49 VDDA6
MHC515
Fig.1 Block diagram.
6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ TEF6700HL データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
TEF6700HL | Car radio tuner front-end | NXP Semiconductors |