SGS Thomson Microelectronics TDA7511 Datasheet
TDA7511
AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS
FM-PART
■ RF AGC GENERATION BY RF AND IF
DETECTION FOR PIN DIODES AND MOSFET
(PRESTAGE)
ST
■ 1
MIXER FOR 1ST FM IF 10.7MHz WITH
PROGRAMMABLE IF TANK ADJUST FOR FM
AND AM UPCONVERSION
■ 2 PROGRAMMABLE IF-GAIN STAGES
ND
■ 2
MIXER FOR 2ND IF 450KHz
■ INTERNAL IF BANDPASS FILTER WITH
THREE BANDWIDTHS CONTROLLED BY ISS
(INCLUDING WEATHER BAND)
■ FULLY INTEGR ATED FM-DEMODULATOR
AM-PART
■ WIDE AND NARROW AGC GENERATION
■ PREAMPLIFIER AND MIXER FOR 1ST IF
10.7MHZ,
AM UPCONVERSION
ND
■ 2
MIXER FOR 2ND IF 450KHZ
■ INTEGRATED AM-DEMODULATOR
■ OUTPUT FOR AM-STEREO-DECODER
ORDERING NUMBER: TDA7511
MULTIPATH
■ QUALITY DETECTION INFORMATIONS AS
ANALOG SIGNALS EXT ERN AL AVAIL ABLE
■ ISS (INTELLIGENT SELECTIVITY SYSTEM)
FOR CANCELLATION OF ADJACENT
CHANNEL AND NOISE INFLUENCES
■ ADJACENT CHANNEL MUTE
■ FULLY ELECTR ONIC ALIGNMENT
■ ALL FUNCTIONS I
■ ISS FILTE R STATUS I NFORMATION I
READABLE
TQFP64
2
C-BUS CONTROLLED
2
C-BUS
ADDITIONAL FEATURES
■ HIGH PERFORMANCE FAST PLL FOR RDS-
SYSTEM
■ IF COUNTER FOR FM AND AM
UPCONVERSION WITH SEARCH STOP
SIGNAL
■ QUALITY DETECTOR FOR LEVEL,
DEVIATION, ADJACENT CHANNEL AND
November 2001
DESCRIPTION
The TDA 7511 is a high performance tuner circuit for
AM/FM car radio. It contains mixers, IF amplifiers, demodulators for AM and FM, quality detection, ISS filter and PLL synthesizer with IF counter on a single
chip.
Use of BICMOS technology allows the implementation of several tuning function s and a mini mum of external components.
1/41
TDA7511
BLOCK DIAGRAM
AMIFin
48
V
V
25 26 33 36 51 49
57 59 54 52 50 46 45
53
CC2
CC1
C Bus
2
I
Supply
35
44
47
REF
Dem
Dem
MPX
450KHz
Divider
Logic
Multipath
Detection
S-Meter 10.7MHz
Adjacent Channel
42
Mute
Soft/AC
Deviation
Detection
Detection
AF
37
DAGC
Dem
ISS
Stopstation
S-Meter
34
MUX
15 43 38 39 41 40
55 56 20 13
AMIF1in
IFC
PLL
PD
61 62 60
PIN
VCO
+
303132
181916178
AGC
7
9
11
6
5
FM
CP
Xtal
281012
CC3
27 2123 20 22 24 58 14
+
Divider
1
PIN
AM
2
WAGC
3464
V
63
99A T0052
2/41
TDA7511
PIN CONNECTION
AMRFAGCIN
AMRFAGCOUT
FMRFAGCIN
(Top view)
AMMIX1IN2
AMMIX1IN1
FMPINDR
FMMOSDR
FMMIX1IN1
GNDRF
FMMIX1IN2
TV1
TV2
ADJCH
FSU
ISSTC
VCCVCO
AMPINDR
AMRFAGCTC
MIX1OUT1
MIX1OUT2
64 63 62 61 60 59 58 57 56 55 54
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
1918
17
21
FMIFAGCIN
GNDIFAMP
AMIF1IN
24
2322
FMAMP1IN
25
AMMIX2OUT1
FMIF1REF
AMMIX2OUT2
FMAMP1OUT
53
27
26
28
FMAMP2IN
VCC2
52
51
29
30
GNDVCC2
FMAMP2OUT
50 49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
31 32
VREF1
GNDDEM
FMMIX2IN1
FMMIX2IN2
FMDEMC
AMIF2IN
MUTETC
AMDETC
AMAGC2TC
AMIFBPF
AMIFREF
MPX/AFAM
VCC1
FSW
AMST/MP
GNDVCC1
SCL
SDA
99AT0053
PIN DESCRIPTION
(continued)
GNDVCO
VCOB
VCOE
XTALD
DEVTC
XTALG
SSTOP
GNDVCC3
VCC3
N° Pin Function
1 AMMIX1IN2 AM Input2 Mixer1
2 AMMIX1IN1 AM Input1 Mixer1 Reference
3 AMRFAGCIN Input AM RF AGC
4 AMRFAGCOUT Output AM RF AGC
5 FMPINDR FM PIN Diode Driver Output
6 FMMOSDR FM MOS Driver Output
7 FMMIX1IN1 FM Input1 Mixer1
8 GNDRF RF Ground
9 FMMIX1IN2 FM Input2 Mixer1
10 TV1 Tuning Voltage 1
11 FMRFAGCIN FM RF AGC Input
12 TV2 Tuning Voltage 2
13 ADJCH Ident. Adjacent Channel Output
14 FSU Unweighted Fieldstrength Output
VREF2
LPOUT
LPAM
LPFM
LPHC
3/41
TDA7511
PIN DESCRIPTION
N° Pin Function
15 ISSTC Time Constant for ISS Filter Switch
16 VCCVCO VCO Supply
17 GNDVCO VCO Ground
18 VCOB VCO Input Base
19 VCOE VCO Output Emitter
20 DEVTC Deviatio n Detector Time Cons tant
21 XTALD Xtal Oscillator to MOS Drain
22 XTALG Xtal Oscillator to MOS Gate
23 GNDVCC3 VCC3 Ground
24 SSTOP Se arch Stop Outpu t
25 SDA
26 SCL
27 VCC3 Supply Tuning Voltage
28 LPOUT Op Amp Output to PLL Loop Filters
29 VREF2 Voltage Reference for PLL Op Amp
30 LPAM Op Amp Input to PLL Loop Filters AM
31 LPFM Op Amp Input to PLL Loop Filters FM
32 LPHC High Current PLL Loop Filter Input
33 GNDVCC1 Digital Ground
34 AMST/MP AM Stereo Out / Ident. Multipath Output
35 FSW Weighted Fieldstrength Output
36 VCC1 Digital Supply
37 MPX/AFAM MPX Output / AM AF Output
38 AMIFREF Reference Voltage AM IF Amp
39 AMIFBPF AM IF Filter
40 AMAGC2TC AM AGC2 Time Constant
41 AMDETC AM Detector Capacitor
42 MU TETC Softmute Time Constant
43 AMIF2IN Input AM IF2
44 FMDEMC FM Demodulator Reference
45 FMMIX2IN2 FM IF1 MIX2 Input1
46 FMMIX2IN1 FM IF1 MIX2 Input2
47 GNDDEM Ground FM Demodulator
48 VREF1 Reference 5V
49 GNDVCC2 Analog Ground
50 FMAMP2OUT FM IF1 Amplifier2 Output
(continued)
2
I
2
I
C-Bus Data
C-Bus Clock
4/41
TDA7511
PIN DESCRIPTION
(continued)
N° Pin Function
51 VCC2 Analog Supply
52 FMAMP2IN FM IF1 Amplifier2 Input
53 FMIF1REF FM IF1 Amplifier Reference
54 FMAMP1OUT FM IF1 Amplifier1 Output
55 AMMIX2OUT2 AM Tank 450kHz
56 AMMIX2OUT1 AM Tank 450kHz
57 FMAMP1IN FM IF1 Amplifier1 Input
58 AMIF1IN AM IF1 Input
59 GNDIF1AMP FM IF1 Amplifier Ground
60 FMIF1AGCIN FM IF1 AGC Input
61 MIX1OUT2 MIX Tank 10.7MHz
62 MIX1OUT1 MIX Tank 10.7MHz
63 AMRFAGCTC AM RF AGC Time Constant
64 AMPINDR AM PIN Diode Driver Output
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
T
amb
T
stg
Supply Voltage 10.5 V
S
Ambient Temperature -40 to 85 °C
Storage Temperature -55 to +150 °C
THERMAL DATA
Symbol Parameter Value Unit
R
Th(j-amb)
Thermal resistance 68 °C/W
ELECTRICAL CHARACTERISTCS
T
amb
f
MOD
= +25°C,
=1kHz, f
V
=
V
CC1
= 10.7MHz, f
IF1
CC2
=
V
CC3
=
V
CCVCO
= 450KHz, f
IF2
=
V
Xtal
= 8.5V, fRF= 98MHz, dev. = 40kHz,
CCMIX1
= 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
Supply
V
V
V
V
CCVCO
Digital supply voltage 7.5 8.5 10 V
CC1
Analog supply voltage 7.5 8.5 10 V
CC2
Analog tuning voltage 7.5 8.5 10 V
CC3
VCO supply voltage 7.5 8.5 10 V
5/41
TDA7511
ELECTRICAL CHARACTERISTCS
T
amb
f
MOD
= +25°C,
=1kHz, f
V
=
V
CC1
= 10.7MHz, f
IF1
CC2
=
V
(continued)
=
V
CC3
= 450KHz, f
IF2
CCVCO
=
V
Xtal
= 8.5V, fRF= 98MHz, dev. = 40kHz,
CCMIX1
= 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
CCMIX1
V
CCMIX2
I
CC1
I
CC1
I
CC2
I
CC2
I
CC3
I
CCVCO
I
CCMIX1
I
CCMIX1
I
CCMIX2
Reference Voltages
V
REF1
V
REF2
Wide Band RF AGC
V
R
C
Narrow Band RF & Keying AGC
V
V
R
C
AGC MOSFET Driver Output
V
V
AGC PIN Diode Driver Output
Mixer1 (10.7MHz)
R
MIX1 supply voltage 7.5 8.5 10 V
MIX2 supply voltage 7.5 8.5 10 V
Supply current FM ON 7.5 mA
Supply current AM ON 10 mA
Supply current FM ON 50 mA
Supply current AM ON 60 mA
Supply current 2 mA
Supply current 2.5 mA
Supply current FM ON 6 mA
Supply current AM ON 5 mA
Supply current AM ON 5 mA
Internal reference voltage I
Internal reference voltage I
Threshold AGC start V6 = V
11
Input resistance 500
IN
Input capacitanc e 2.5 pF
IN
Lower threshold FMAGC, V11 = 0mV
60
Upper threshold FMAGC, V11 = 0mV
60
Input resistance 10
IN
Input capacitanc e 2.5 pF
IN
Max. AGC output voltage V11 = 0mV
6
= 0mA 5 V
REF1
= 0mA 2.5 V
REF2
/2 80
CC2
82
92
RMS
RMS
RMS
V
CC2
-0.5V
Min. AGC output voltage V11 = 50mV
6
I
Min. AGC charge current V11 = 0mV
6
Max. AGC discharge current V11 = 50mV
I
6
AGC OUT, current min. V11 = 0mV
I
5
I
AGC OUT, current max. V11 = 50 mV
5
Input impedance B alanc ed, f = 98MHz 9
IN
RMS
= V
RMS,V6
RMS,V6
, V5 = 2V 50
RMS
, V5 = 2V -6 mA
RMS
/2 -12.5
CC2
= V
/2 1.25 mA
CC2
dB
dB
dB
0.5 V
Ω
k
V
µA
µA
Ω
µV
µV
µV
Ω
6/41
TDA7511
ELECTRICAL CHARACTERISTCS
T
amb
f
MOD
= +25°C,
=1kHz, f
V
=
V
CC1
= 10.7MHz, f
IF1
CC2
=
V
(continued)
=
V
CC3
= 450KHz, f
IF2
CCVCO
=
V
Xtal
= 8.5V, fRF= 98MHz, dev. = 40kHz,
CCMIX1
= 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
IP3 3rd order intercept point 122
F N oise figure 6dB
A
Conversion gain 120 mS
C
IF1 Amplifier1 & 2 (10.7MHz)
A
A
R
R
P
Min. gain IFG 9 dB
min
Max. gain IFG
max
Input resistance 330
IN
Output resistance 330
OUT
1dB compression point Output referred 120
1dB
15
IP3 3rd order Intercept Point Output referred 132
Mixer2 (450kHz)
R
V
V
Input impedance 330
IN
Max. input voltage 900 mV
46
Limiting sensitivity S/N = 20dB 25
48
A Mixer gain 18 dB
Limiter 1 (450kHz)
G
Limiter
Gain 80 dB
Demodulator, Audio Output
THD Dev.= 75kHz, V
V
R
|∆V|
∆V|
|
MPX
MPX output signal Dev.= 75kHz 500 mV
Output resistance 350
OUT
DC offset fine adjust DEM, MENA=1 6 mV
min
DC offset fine adjust DEM, MENA=1 186 mV
max
S/N Dev.= 40kHz,V
= 10mV
46
= 10mV
46
RMS
RMS
0.1 %
75 dB
Quality Detection
S-meter, Unweighted Fieldstrength
V
∆V
∆V
V
V
R
Min. input voltage MIX2 10
46
Per decade SMSL = 0 1 V
Per decade SMSL = 1 1.5 V
Fieldstrength output V46 = 0V
14
Fieldstrength output V46 = 1V
14
Output resistance 4
OUT
RMS
RMS
0.1 V
4.9 V
dB
dB
dB
dB
Ω
Ω
Ω
µV
Ω
µV
k
µV
µV
µV
RM
S
RM
S
Ω
7/41
TDA7511
ELECTRICAL CHARACTERISTCS
T
amb
f
MOD
= +25°C,
=1kHz, f
V
=
V
CC1
= 10.7MHz, f
IF1
CC2
=
V
(continued)
=
V
CC3
= 450KHz, f
IF2
CCVCO
=
V
Xtal
= 8.5V, fRF= 98MHz, dev. = 40kHz,
CCMIX1
= 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
∆V
TK Temp coeff. 0 ppm/K
S-meter, Weighted Fieldstrength
V
V
R
Adjacent Channel Gain
A
A
Adjacent Channel Filter
f
f
f
-20dB
Adjacent Channel Output
V
V
R
Multipath Channel Gain
A
A
Multipath Bandpass Filter
f
Lower
f
Upper
Multipath Output
V
V
R
ISS (intelligent Selectivity System)
Filter 450kHz
f
centre
BW 3dB Bandwidth, -3dB ISS80 = 1 80 kHz
BW
20dB
S-meter shift voltage SL -1.8 1.8 V
14
Fieldstrength output V46 = 0V
35
Fieldstrength output V46 = 1V
35
Output resistance 12
OUT
Gain minimum ACG 32 dB
min
Gain maximum ACG 38 dB
max
-3dB frequency highpass ACF 100 kHz
HP
Centre frequency ACF 100 kHz
BP
RMS
RMS
2.5 V
4.9 V
Attenuation 20dB 70 kHz
Output voltage low 0.1 V
13
Output voltage high 4.9 V
13
Output resistance 4
OUT
Gain minimum MPG 12 dB
min
Gain maximum MPG 23 dB
max
Centre frequency low MPF 19 kHz
Centre frequency up MPF 31 kHz
Q Quality factor 5 10
Output voltage low 0.1 V
34
Output voltage high 4.9 V
34
Output resistance 2.5
OUT
Centre frequency f
REF_intern
= 450kHz 450 kHz
Bandwidth, -20dB ISS80 = 1 150 kHz
Ω
k
Ω
k
Ω
k
8/41
TDA7511
ELECTRICAL CHARACTERISTCS
T
amb
f
MOD
= +25°C,
=1kHz, f
V
=
V
CC1
= 10.7MHz, f
IF1
CC2
=
V
(continued)
=
V
CC3
= 450KHz, f
IF2
CCVCO
=
V
Xtal
= 8.5V, fRF= 98MHz, dev. = 40kHz,
CCMIX1
= 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
BW 3dB Bandwidth, -3dB ISS80 = 0 120 kHz
BW
20dB
BW 3dB Bandwidth weather band ISS30 = 1 30 kHz
BW
20dB
∆f
∆f
Adjacent Channel ISS Filter Threshold
V
V
V
WTH
V
WTH
Multipath Threshold
V
THMP
V
THMP
ISS Filter Time Constant
I
I
I
I
I
I
V
V
ISS Filter Switch Threshold
V
V
V
V
I
I
I
I
Bandwidth, -20dB ISS80 = 0 250 kHz
-20dB weather band ISS30 = 1 80 kHz
Fine adjust AISS -20 kHz
min
Fine adjust AISS 10 kHz
max
Internal low threshold ACNTH 0 V
NTH
Internal high threshold ACNTH 0.3 V
NTH
Internal low threshold ACWTH 0.25 V
Internal high threshold ACWTH
0.95
Internal low threshold MPTH 0.50 V
Internal high threshold MPTH 1.25 V
Charge current low mid TISS, ISSCTL = 1 -74
15
Charge current high mid TISS, ISSCTL = 1 -60
15
Charge current low narrow TISS, ISSCTL = 1 -124
15
Charge current high narrow TISS, ISSCTL = 1 -110
15
Discharge current low TISS, ISSCTL = 0
15
Discharge current high TISS, ISSCTL = 0 15
15
Low voltage ISSCTL = 0 0.1 V
15
High voltage ISSCTL = 1 4.9 V
15
Threshold ISS on ISSCTL = 0 3 V
15
Threshold ISS off ISSCTL = 0 1 V
15
Threshold ISS narrow on ISSCTL = 0 4 V
15
Threshold ISS narrow off ISSCTL = 0 2 V
15
Charge current low TDEV -20
20
Charge current high TDEV -34
20
Discharge current low TDEV 6
20
Discharge current high TDEV 20
20
1
V
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
9/41
TDA7511
ELECTRICAL CHARACTERISTCS
T
amb
f
MOD
= +25°C,
=1kHz, f
V
=
V
CC1
= 10.7MHz, f
IF1
CC2
=
V
(continued)
=
V
CC3
= 450KHz, f
IF2
CCVCO
=
V
Xtal
= 8.5V, fRF= 98MHz, dev. = 40kHz,
CCMIX1
= 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
DEV
DEV
RATIO
RATIO
Softmute
V
V
a
SMmin
a
SMmax
a
SMTHIS
V
ACTH
a
SMAC
I
I
S/N Over All
S/N
Internal low threshold DWTH 30 kHz
WTH
Internal high threshold DWTH 75 kHz
WTH
Referred to threshold DTH 1
mi
n
Referred to threshold DTH 1.5
m
ax
Upper startpoint SMTH, SMD, SLOPE = 0 16
ANT
lower startpoint
ANT
Min. softmute depth SMD, SLOPE = 0, SMTH
Max. softmute depth SMD, SLOPE = 0, SMTH
SMTH, SMD, SLOPE = 0 3
Upper
Upper
18 dB
36 dB
Mute depth threshold for ISS filter onSMCTH 0.2 2 dB
S
Internal AC mute threshold ACM 60 220 mV
AC mute depth 6 dB
Charge current -47.5
42
Discharge current 2.5
42
V
IN_min
= 60dBµV,
66 dB
dev.= 40kHz,LP=15KHz
deemphasis t = 50
µs
dB
dB
µV
µV
µA
µA
ELECTRICAL CHARACTERISTICS
T
amb
AMf
= +25°C,
= 10.7MHz, f
IF1
V
=
V
CC1
IF2
=
CC2
= 450kHz, f
V
=
CC3
V
xtal
=
CCVCO
V
CCMIX1
=
V
CCMIX2
=8.5V, fRF=1MHz, f
= 400Hz at 30%
MOD
= 10.25MHz, in test or application circuit, (unless otherwise noted, V
antenna input).
Symbol Parameter Test Condition Min. Typ. Max. Unit
AM SECTION
Global
INRF
Max. sensitivity
Ref.: V
∆V
37
= 74dBµV,
INRF
= -10dB
us Usable sensitivity (S+N)/N = 20 dB 30 26
INRF
AGC Range
Ref.: V
∆V
37
Ref.: V
= 74dBµV,
INRF
= -10dB
= 74dBµV
INRF
V
min
V
INRF
∆V
(S+N)/N Signal to Noise Ratio
10/41
51 dB
49 56 dB
19
dB
dB
inRF
µV
µV
TDA7511
ELECTRICAL CHARACTERISTICS
T
amb
AMf
= +25°C,
= 10.7MHz, f
IF1
V
=
V
CC1
IF2
=
CC2
= 450kHz, f
V
CC3
(continued)
=
V
xtal
=
CCVCO
V
CCMIX1
=
V
CCMIX2
=8.5V, fRF=1MHz, f
= 400Hz at 30%
MOD
= 10.25MHz, in test or application circuit, (unless otherwise noted, V
antenna input).
Symbol Parameter Test Condition Min. Typ. Max. Unit
a
a
f
V
INRFSS
THD Total Harmonic Distortion
V
V
IF rejection
IF
Tweet
TW
Frequency response
AF
Ref: V
IF1 = 10.7MHz
IF2 = 450kHz
∆V
C
28
Ref.: V
∆V
INRF
= -10dB
37
= 22µF
INRF
= -3 dB
AF
= 74dBµV,
100
100
-3 -0.7 dB
= 74dBµV,
Seek Stop Sensitivity A MSS 20 35 45
V
= 74 dBµV, m = 0.8
INRF
m = 0.3
= 120 dbµV, m = 0.8
V
INRF
m = 0.3
37
34
Output level
Output level
= 74 dBµV
V
INRF
= 74 dBµ, m=off
V
INRF
3.6 kHz
dB
0.5
0.3
1.0
0.3
220 mV
190 mV
inRF
dB
dB
µV
%
RM
S
RM
S
V
R
63OUT
R
40OUT
R
40OUT
V
V
Min. RF AGC threshold
3
Max. RF AGC threshold
Min. IF AGC threshold
58
Max. IF AGC threshold
Min. IF AGC threshold
3
Max. IF AGC threshold
AMAGC
Wide
AMAGC
Middle
DAGC
Narrow
Output impedance 100
Output impedance AMSEEK = 0 150
Output impedance AMSEEK = 1 5
AGC Voltage Driver Output
V
V
Max. AGC output voltage 3.5 V
4
Min. AGC output voltage
4
|I4| AGC current 100
AGC PIN Diode Driver Output
I
AGC driver current 1.5 mA
64
AM Mixer1 (10.7MHz)
R
Input impedance 1.2
IN
82
98.8
80.1
96.8
32.6
80.7
0.5
dB
dB
dB
dB
dB
dB
k
k
k
V
µA
k
µV
µV
µV
µV
µV
µV
Ω
Ω
Ω
Ω
IP3 3rd order intercept point 140
dB
µV
F N oise figure 7dB
11/41
TDA7511
ELECTRICAL CHARACTERISTICS
T
amb
AMf
= +25°C,
= 10.7MHz, f
IF1
V
=
V
CC1
IF2
=
CC2
= 450kHz, f
V
CC3
(continued)
=
V
xtal
=
CCVCO
V
CCMIX1
=
V
CCMIX2
=8.5V, fRF=1MHz, f
= 400Hz at 30%
MOD
= 10.25MHz, in test or application circuit, (unless otherwise noted, V
inRF
antenna input).
Symbol Parameter Test Condition Min. Typ. Max. Unit
A Gain 6dB
C
C
C
61-62
AM Mixer2 (450kHz)
R
IP3 3rd order intercept point 140
∆A
C
C
Min. capacitance step IF1T 0.55 pF
min
Max. capacitance IF1T 8.25 pF
max
IF1T 2 pF
Input impedance Dependent on application 5
IN
k
dB
F N oise figure 12 dB
A Max. gain Mixer2 tank output 15 dB
Gain control range 20 dB
Min. cap step IF2T 1.6 pF
min
Max. cap IF2T 24 pF
max
Ω
µV
C
55-56
ELECTRICAL CHARACTERISTICS
IF2T 2 pF
Symbol Parameter Test Condition Min. Typ. Max. Unit
ADDITIONAL PARAMETERS
Outputs of Tuning Voltage(TV1, TV2)
V
R
Output voltage TVR,TVO 1 VCC3-1VV
OUT
Output impedance 20
OUT
Xtal Reference Oscillator
f
C
C
∆f/f
∆f/f
2
I
C-Bus interface
f
SCL
Reference frequency C
LO
Min. cap step XTAL 0.6 pF
Step
Max. cap XTAL 19.4 pF
max
Freq. deviation versus VCC2
= 15pF 10.25 MHz
Load
∆V
CC2
= 1V
1.5 ppm/V
Freq. deviation versus temp -40°C < T < +85°C 0.2 ppm/K
Clock frequency 400 kHz
Ω
k
12/41
V
Input low voltage 1V
IL
TDA7511
ELECTRICAL CHARACTERISTICS
(continued)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
I
V
Input high voltage 3 V
IH
Input current -5 5
IN
Output voltage SDA acknowledge IO = 1.6mA 0.4 V
O
Loop Filter Input/Output
-I
I
V
V
I
OUT
I
OUT
Input leakage current VIN = GND, PD
IN
Input leakage current VIN = VREF1
IN
Output voltage Low I
OL
Output voltage High I
OH
Output current, sink V
Output current, source V
PD
= Tristate
OUT
= -0.2mA 0.05 0.5 V
OUT
= 0.2mA VCC3
OUT
= 1V to V
OUT
= 1V to V
OUT
= Tristate -0.1 0.1
OUT
-0.1 0.1
VCC3
-0.5
-1V 10 mA
CC3
CC3
-1V
-10
-0.05
Voltage Controlled Oscillator (VCO)
f
VCOmin
f
VCOmax
Minimum VCO frequency
Maximum VCO frequency 200 MHz
50
µA
µA
µ
A
V
mA
MHz
C/N Carrier to Noise 1KHz offset 85 dBc
SSTOP Output
V
V
V
Output voltage low
24
Output voltage high
24
IF counter sensitivity Antenna input 6
46
= -20µA
I
24
= 20µA
I
24
3V
0.2 V
dB
µV
13/41
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