TEF6701HL
Car radio tuner front-end for digital IF
Rev. 01 — 16 November 2004
Product data sheet
1. General description
The TEF6701HL is a single chip car radio tuner for AM, FM standard, FM In-Band
On-Channel Digital Audio Broadcast (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.
2. Features
s
FM mixer for conversion of FM RF (64 MHz to 108 MHz and US weather band) to an
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 I
2
C-bus; two different mixer
conversion gains can be selected via the I
2
C-bus
s
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 I
2
C-bus as a local function for search
tuning; AGC threshold is a programmable and keyed function switchable via the
I
2
C-bus
s
Digital alignment circuit for bus controlled matching of oscillator tuning voltage to FM
antenna tank circuit tuning voltage
s
Buffer output for weather band flag
s
FM IF linear amplifier with high dynamic input range; amplifier gain can be switched to
two different positions via the I
2
C-bus
s
FM IF AGC with multiplexed inputs for FM and In-Band On-Channel Digital Audio
Broadcast (IBOC DAB)
s
Buffer amplifier for FM IBOC DAB IF bypassing second IF filter can be activated via
I
2
C-bus
s
AM mixer 1 for conversion of AM RF to AM IF1 10.7 MHz
s
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 I
2
C-bus
s
AM noise blanker with blanking at AM IF2; AM noise blanker can be deactivated via
the I
2
C-bus
s
AM mixer 2 for conversion of AM IF1 to AM IF2 450 kHz
Philips Semiconductors
TEF6701HL
Car radio tuner front-end for digital IF
s
s
s
s
s
s
s
s
s
s
s
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 I
2
C-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 I
2
C-bus addresses; pin BUSENABLE; two software
controlled flag outputs
Several test modes for fast IC and system tests.
3. Quick reference data
Table 1:
Symbol
V
DDA(n)
V
DDA5
V
DDD
I
DDA(n)
I
DDA5
I
DDD
f
AM(ant)
Quick reference data
Parameter
analog supply voltages
1 to 4 and 6
analog supply voltage 5
digital supply voltage
sum of analog supply
currents 1 to 4 and 6
FM Japan mode
AM mode
AM mode
digital supply current
AM input frequency
FM Japan mode
AM mode
LW
MW
SW
f
FM(ant)
FM input frequency
f
FM(WB)(ant)
FM weather band input
frequency
T
amb
g
m(conv)
ambient temperature
AM mixer 1 conversion
transconductance
---------
-
AM overall system parameters; see
Figure 8
3.9
5.2
6.5
Conditions
Min
8
4.75
4.75
42
32
7.5
14
25
21
Typ
8.5
5
5
55
43
10
18.5
32
26
Max
9
5.25
5.25
71
56
12
23
39.5
32
0.288
1.710
9.99
108
Unit
V
V
V
mA
mA
mA
mA
mA
mA
MHz
MHz
MHz
MHz
analog supply current 5 FM Japan mode
0.144 -
0.522 -
5.73
64
-
-
162.4 -
−40
-
162.55 MHz
+85
°C
I
IF1
mA
--------
-
V
dB
V
RF
F
AMMIX1
noise figure of AM
mixer 1
-
4.5
7.1
9397 750 13471
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 16 November 2004
2 of 55
Philips Semiconductors
TEF6701HL
Car radio tuner front-end for digital IF
Quick reference data
…continued
Parameter
3rd-order input
intercept point
AM mixer 2 conversion
transconductance
Conditions
R
L
= 2.6 kΩ (AC load
between output pins);
∆f
= 300 kHz
Min
135
Typ
138
Max
-
Unit
dBµV
Table 1:
Symbol
IP3
g
m(conv)
3.2
4.3
5.4
mA
--------
-
V
I
IF2
----------
-
V
IF1
∆AGC
AM IF2 amplifier gain
control range
----------------
-
52
-
-
dB
V
IFstop
V
IFstart
FM overall system parameters; see
Figure 8
FM mixer
g
m(conv)
conversion
transconductance
---------
-
MIXGAIN = 0
8.5
12.5
18
I
IF
mA
--------
-
V
mA
--------
-
V
dB
dB
dBµV
dBµV
V
RF
MIXGAIN = 1
MIXGAIN = 0
MIXGAIN = 1
MIXGAIN = 0
MIXGAIN = 1
R
L
= 330
Ω;
V
IFAMPIN-IFAMPDEC
= 1 mV
IFGAIN = 0
IFGAIN = 1
17
25
36
F
FMmixer
IP3
noise figure of FM
mixer
3rd-order input
intercept point
-
-
113
-
3.5
2.4
117
108
4.6
-
-
-
FM amplifier
G
IFAMP
FM IF amplifier gain
V
FMIFAMPOUT
-------------------------------------------------
-
V
IFAMPIN-IFAMPDEC
G
IBOCAMP
IP3
IF
IP3
IBOC
-
-
-
-
-
-
10.5
14
8
123
119
123
-
-
-
-
-
-
dB
dB
dB
dBµV
dBµV
dBµV
FM IBOC amplifier gain IBOC = 1
3rd-order input
intercept point
3rd-order input
intercept point IBOC
mode
noise figure of FM IF
amplifier
noise figure of
FM IBOC amplifier
FM IF amplifier gain
control range
----------------
-
IFGAIN = 0
IFGAIN = 1
IBOC = 1
F
IFAMP
F
IBOCAMP
∆AGC
IFGAIN = 0
IFGAIN = 1
IBOC = 1
-
-
-
59
10
8.3
7
-
-
-
-
-
dB
dB
dB
dB
V
IFstop
V
IFstart
9397 750 13471
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 16 November 2004
3 of 55
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9397 750 13471
AMNBHOLD
AMMIX1DEC
VDDA2
TAMNBAGC
IFAMPDEC
IFAMPIN
IFAMPGND
VDDA1
FMIFAMPOUT
AMMIX2OUT2
AMIF2DEC
AMIF2IN
FMIFIN
FMIFDEC
AMMIX2OUT1
TFMIFAGC
TAMIF2AGC
17
AM IF
AGC
IFOUT
IF
MUX
62
15
54
46
11
10
12
9
8
2
1
6
5
4
3
64
63
7, 27
5. Block diagram
Philips Semiconductors
AMMIX1IN
18
1st AM
MIXER
AM NOISE
DETECTOR
2nd AM
MIXER
VAMCAS
:2
FM IF
AGC
60
FM
GAIN
FM
LEVEL
DAA
XTAL-
OSC
AM/FM
LEVEL
19
AM
AM/FM
IF
COUNT
VAMCASFB
20
IAMAGC
21
AM
RF AGC
TAFAMAGC
22
TRFAMAGC
23
i.c.
DAAIN
DGND
VDDD
DAATD
VDDA3
VDDA4
IFGND
VTUNE
CPOUT
OSCFDB
TFMAGC
Car radio tuner front-end for digital IF
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
TEF6701HL
5 of 55
Fig 1. Block diagram.
TKEYEDAGC
VCOGND
OSCTNK
VDDA5
Product data sheet
XTALGND
59
58
XTAL2
XTAL1
N2
:5/10
IBOC
MIX1OUT1
13
MIX1OUT2
14
VREFFMMIX
24
90°
GAIN
TEF6701HL
:1/:2/:3
N1
56
VLEVEL
FMMIXIN1
WB/FM/
Japan
25
RFGND
26
FM
I/Q MIXER
FMMIXIN2
28
Rev. 01 — 16 November 2004
I2C-
BUS
SEQUENTIAL
CIRCUIT FOR
RDS UPDATING
TUNING SYSTEM
VCO
40
41
42
43
44
45
47
POWER
SUPPLY
48
33
34
37
38
39
WBFLAG
29
WB
55
16
57
53
52
51
50
61
49
AFHOLD
SWPORT1
SWPORT2
SCL
SDA
BUSENABLE
ADDRSEL
IREF
VDDA6
coa026
threshold
IFMAGC
30
FM
AGC
AGCBUF
31
AGC
BUFFER
DAAOUT
32
ANT
DAA
35
36
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