TI SN761668

SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Integrated Mixer/Oscillator/PLL and IF GCA
VHF-L, VHF-H, UHF 3-Band Local Oscillator
RF AGC Detector Circuit
External 4-Pin IF Filter Between Mixer Output
and IF Amplifier Input
I2C Bus Protocol Bidirectional Data
Transmission
High-Voltage Tuning Voltage Output
Four NPN-Type Band-Switch Drivers
One Auxiliary Port/5-Level ADC
Crystal Oscillator Output
Programmable Reference Divider Ratio
(24/28/50/64/80/128)
Low Distortion IF Gain Controlled Amplifier
Standby Mode
5-V Power Supply
44-Pin Thin Shrink Small-Outline Package
(TSSOP)
APPLICATIONS
•
•
•
Digital TV
Digital CATV
Set-Top Box
DBT PACKAGE
(TOP VIEW)
VLO OSC B
1
44
VLO OSC C
VHI OSC B
VHI OSC C
OSC GND
UHF OSC B1
UHF OSC C1
UHF OSC C2
UHF OSC B2
IF GND
IF OUT1
IF OUT2
CP
VTU
VCC
2
43
3
42
4
41
5
40
6
39
7
38
8
37
9
36
10
35
11
34
12
33
13
32
14
31
15
30
IF GCA IN1
IF GCA IN2
IF GCA CTRL
IF GCA GND
IF GCA OUT2
IF GCA OUT1
P5/ADC
16
29
17
28
18
27
19
26
20
25
21
24
22
23
BS4
UHF RF IN1
UHF RF IN2
VHI RF IN
VLO RF IN
RF GND
MIXOUT2
MIXOUT1
IF IN2
IF IN1
RF AGC OUT
RF AGC FIL
BS3
BS2
BS1
SDA
SCL
AS
BUS GND
XTAL OUT
XTAL2
XTAL1
DESCRIPTION
The SN761668 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems. The circuit
consists of a PLL synthesizer, three-band local oscillator and mixer, RF AGC detector circuit, and IF
gain-controlled amplifier. The SN761668 is available in a small-outline package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated
SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
VHF-L
Oscillator
VHF-H
Oscillator
IF IN2
IF IN1
MIX OUT1
MIX OUT2
UHF OSC C2
UHF OSC B2
UHF OSC B1
UHF OSC C1
VHI OSC C
VHI OSC B
OSC GND
VLO OSC C
VLO OSC B
FUNCTIONAL BLOCK DIAGRAM
IF
Amplifier
UHF
Oscillator
IF OUT1
IF OUT2
IF GND
VLO RF IN
VHF-L
Mixer
VHF-H
Mixer
UHF
Mixer
RF AGC FIL
RF
AGC
Detect
VHI RF IN
RF AGC OUT
UHF RF IN1
UHF RF IN2
CP
Programmable
Divider
RF GND
XTAL1
XTAL2
VTU
Operational
Amplifier
XTAL
Oscillator
128/80/64/50/
28/24 Div
Phase
Detector
Charge
Pump
VCC
XTAL OUT
NPN Band-Switch Port
SCL
SDA
2
I C Bus
Interface
IF
GCA
IF GCA OUT2
AS
IF GCA GND
2
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IF GCA CTRL
IF GCA IN1
IF GCA IN2
BS1
BS2
BS3
BS4
5-Level
ADC
P5/ADC
BUS GND
IF GCA OUT1
SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
TERMINAL FUNCTIONS
TERMINAL
NAME
DESCRIPTION
NO.
SCHEMATIC
AS
27
Address selection input
Figure 1
BS1
30
Band-switch 1 output
Figure 2
BS2
31
Band-switch 2 output
Figure 2
BS3
32
Band-switch 3 output
Figure 2
BS4
44
Band-switch 4 output
Figure 2
BUS GND
26
BUS ground
CP
13
Charge-pump output
Figure 3
IF GCA CTRL
18
IF GCA CTRL voltage inout
Figure 4
IF GCA GND
19
IF GCA ground
IF GCA IN1
16
IF GCA input 1
Figure 5
IF GCA IN2
17
IF GCA input 2
Figure 5
IF GCA OUT1
21
IF GCA output 1
Figure 6
IF GCA OUT2
20
IF GCA output 2
Figure 6
IF GND
10
IF ground
IF IN1
35
IF amplifier input 1
Figure 7
IF IN2
36
IF amplifier input 2
Figure 7
IF OUT1
11
IF amplifier output 1
Figure 8
IF OUT2
12
IF amplifier output 2
Figure 8
MIX OUT1
37
Mixer output 1
Figure 9
MIX OUT2
38
Mixer output 2
Figure 9
OSC GND
5
Oscillator ground
P5/ADC
22
Port-5 output/ADC input
Figure 10
RF AGC FIL
33
RF AGC additional capacitor pin
Figure 11
RF AGC OUT
34
RF AGC output
Figure 12
RF GND
39
RF ground
SCL
28
Serial clock input
Figure 13
SDA
29
Serial data input/output
Figure 14
UHF OSC B1
6
UHF oscillator base 1
Figure 15
UHF OSC B2
9
UHF oscillator base 2
Figure 15
UHF OSC C1
7
UHF oscillator collector 1
Figure 15
UHF OSC C2
8
UHF oscillator collector 2
Figure 15
UHF RF IN1
43
UHF RF input 1
Figure 16
UHF RF IN2
42
UHF RF input 2
Figure 16
VCC
15
Supply voltage for mixer/oscillator/PLL: 5 V
VHI OSC B
3
VHF HIGH oscillator base
Figure 17
VHI OSC C
4
VHF HIGH oscillator collector
Figure 17
VHI RF IN
41
VHF-H RF input
Figure 18
VLO OSC B
1
VHF LOW oscillator base
Figure 19
VLO OSC C
2
VHF LOW oscillator collector
Figure 19
VLO RF IN
40
VHF-L RF input
Figure 20
VTU
14
Tuning voltage amplifier output
Figure 3
XTAL1
23
4-MHz crystal oscillator output
Figure 21
XTAL2
24
4-MHz crystal oscillator input
Figure 21
XTALOUT
25
4-MHz crystal oscillator output
Figure 22
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SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
3 kW
27
30
10 W
31
32
50 kW
Figure 1. AS
44
Figure 2. BS1, BS2, BS3, and BS4
14
4 kW
18
100 kW
13
Figure 3. CP and VTU
Figure 4. IF GCA CTRL
Vbias
1 kW
1 kW
16
17
15 W
20
21
Figure 5. IF GCA IN1 and IF GCA IN2
Figure 6. IF GCA OUT1 and IF GCA OUT2
35
20 W
11
12
36
Figure 7. IF IN1 and IF IN2
4
Figure 8. IF OUT1 and IF OUT2
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SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
37
38
25 W
50 W
22
Figure 9. MIX OUT1 and MIX OUT2
Figure 10. P5/ADC
55 W
25 W
25 kW
34
33
20 pF
Figure 11. RF AGC FIL
Figure 12. RF AGC OUT
1 kW
25 W
28
Figure 13. SCL
Figure 14. SDA
42
8
7
9
6
3 kW
1 kW
29
43
3 kW
Figure 15. UHF OSC B1, UHF OSC B2, UHF OSC C1, and
UHF OSC C2
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Figure 16. UHF RF IN1 and UHF RF IN2
5
SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
4
41
3 kW
3
3 kW
3 kW
Figure 17. VHI OSC B and VHI OSC C
Figure 18. VHI RF IN
2
40
3 kW
1
3 kW
3 kW
Figure 19. VLO OSC B and VLO OSC C
24
Figure 20. VLO RF IN
23
20 W
10 W
25 W
25
50 kW
Figure 21. XTAL1 and XTAL2
6
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Figure 22. XTAL OUT
SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
Absolute Maximum Ratings
(1)
over recommended operating free-air temperature range (unless otherwise noted)
MIN
MAX
VCC
–0.4
6.5
V
(2)
RF GND, OSC GND
–0.4
0.4
V
Input voltage 2
(2)
VTU
–0.4
35
V
Input voltage 3
(2)
Other pins
–0.4
6.5
(2)
UNIT
VCC
Supply voltage range
VGND
Input voltage 1
VTU
VIN
PD
Continuous total dissipation
TA
Operating free-air temperature range
–20
85
°C
Tstg
Storage temperature range
–65
150
°C
TJ
Maximum junction temperature
150
°C
tSC(max)
Maximum short-circuit time
10
s
(1)
(2)
(3)
TA ≤ 25°C
(3)
1438
Each pin to VCC or to GND
V
mW
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Voltage values are with respect to the IF GND of the circuit.
Derating factor is 11.5 mW/°C for TA ≥ 25°C.
Recommended Operating Conditions
MIN
VCC
Supply voltage
VTU
Tuning supply voltage
4.5
IBS
Output current of band switch
BS1 – BS4, one band switch on
IP5
Output current of port 5
P5/ADC
TA
Operating free-air temperature
–20
NOM
MAX
UNIT
5
5.5
30
33
V
10
mA
–5
mA
85
°C
V
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
IF IN1, IF IN2, MIXOUT1, and MIXOUT2 (Pins 35 – 38) withstand 1.5 kV, and all other pins withstand 2 kV, according to the
Human-Body Model (1.5 kΩ, 100 pF).
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SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
Electrical Characteristics – Total Device and Serial Interface
VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
ICC1
Supply current 1
ICC2
Supply current 2
One band switch on (IBS = 10 mA)
ICC-STBY
Standby supply current
STBY = 1
VIH
High-level input voltage (SCL, SDA)
VIL
Low-level input voltage (SCL, SDA)
IIH
High-level input current (SCL, SDA)
IIL
Low-level input current (SCL, SDA)
–10
VPOR
Power-on-reset supply voltage (threshold of supply
voltage between reset and operation mode)
2.1
TYP
MAX
UNIT
115
140
mA
125
150
mA
9
mA
2.5
V
1.35
V
10
µA
µA
2.8
3.5
V
I2C Interface
8
VASH
Address-select high-input voltage (AS)
VCC = 5 V
4.5
5
V
VASM1
Address-select mid-input 1 voltage (AS)
VCC = 5 V
2
3
V
VASM2
Address-select mid-input 2 voltage (AS)
VCC = 5 V
1
1.5
V
VASL
Address-select low-input voltage (AS)
VCC = 5 V
IASH
Address-select high-input current (AS)
IASL
Address-select low-input current (AS)
VADC
ADC input voltage
See Table 10
IADH
ADC high-level input current
VADC = VCC
IADL
ADC low-level input current
VADC = 0 V
VOL
Low-level output voltage (SDA)
VCC = 5 V, IOL = 3 mA
0.4
V
lSDAH
High-level output leakage current (SDA)
VSDA = 5.5 V
10
µA
fSCL
Clock frequency (SCL)
400
kHz
tHD-DAT
Data hold time
0
µs
tBUF
Bus free time
1.3
µs
tHD-STA
Start hold time
0.6
µs
tLOW
SCL-low hold time
0.6
µs
tHIGH
SCL-high hold time
0.6
µs
tSU-STA
Start setup time
0.6
µs
tSU-DAT
Data setup time
0.1
µs
tr
Rise time (SCL, SDA )
0.3
µs
tf
Fall time (SCL, SDA)
0.3
µs
tSU-STO
Stop setup time
0.5
V
10
µA
µA
–10
0
0.6
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V
10
µA
µA
–10
100
See Figure 23
VCC
µs
SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
Electrical Characteristics – PLL and Band Switch
VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
N
Divider ratio
15-bit frequency word
fXTAL
Crystal oscillator frequency
RXTAL = 25 Ω to 300 Ω
ZXTAL
Crystal oscillator input impedance
MIN
TYP
512
4
VXLO
XTALOUT output voltage
Load = 10 pF/5.1 kΩ, VCC = 5 V,
TA = 25°C
VVTUL
Tuning amplifier low-level output voltage
RL = 20 kΩ, VTU = 33 V
IVTUOFF
Tuning amplifier leakage current
Tuning amplifier = off, VTU = 33 V
0.2
0.4
Vp-p
0.3
CP[1:0] = 11
600
CP[1:0] = 10
350
CP[1:0] = 01
140
ICP00
CP[1:0] = 00
VCP
Charge-pump output voltage
PLL locked
ICPOFF
Charge-pump leakage current
VCP = 2 V, TA = 25°C
IBS
Band-switch driver output current (BS1–BS4)
VBS1
VBS2
Band-switch driver output voltage
(BS1–BS4)
IBSOFF
Band-switch driver leakage current
(BS1–BS4)
IP5
Band-switch port sink current (P5/ADC)
VP5ON
Band-switch port output voltage (P5/ADC)
MHz
kΩ
ICP10
ICP01
UNIT
1.6
ICP11
Charge-pump current
MAX
32767
0.46
V
10
µA
µA
70
1.95
–15
IBS = 10 mA
V
15
nA
10
mA
3
IBS = 10 mA, VCC = 5 V, TA = 25°C
3.5
V
3.9
8
µA
–5
mA
0.6
V
VBS = 0 V
IP5 = –2 mA, VCC = 5 V, TA = 25°C
Electrical Characteristics – RF AGC
VCC = 5 V, TA = 25°C, measured in Figure 24 reference measurement circuit at 50-Ω system, IF = 44 MHz,
IF filter characteristics: fpeak = 44 MHz (unless otherwise noted)
PARAMETER
IOAGC0
TEST CONDITIONS
TYP
UNIT
ATC = 0
300
nA
ATC = 1
15
µA
ATC = 0
100
µA
VAGCSP00
T1/ATSS = 0, ATP[2:0] = 000
117
VAGCSP01
T1/ATSS = 0, ATP[2:0] = 001
114
VAGCSP02
T1/ATSS = 0, ATP[2:0] = 010
111
VAGCSP03
T1/ATSS = 0, ATP[2:0] = 011
108
VAGCSP04
T1/ATSS = 0, ATP[2:0] = 100
105
VAGCSP05
T1/ATSS = 0, ATP[2:0] = 101
102
VAGCSP06
T1/ATSS = 0, ATP[2:0] = 110
99
T1/ATSS = 1, ATP[2:0] = 000
112
VAGCSP11
T1/ATSS = 1, ATP[2:0] = 001
109
VAGCSP12
T1/ATSS = 1, ATP[2:0] = 010
106
VAGCSP13
T1/ATSS = 1, ATP[2:0] = 011
103
VAGCSP14
T1/ATSS = 1, ATP[2:0] = 100
100
VAGCSP15
T1/ATSS = 1, ATP[2:0] = 101
97
VAGCSP16
T1/ATSS = 1, ATP[2:0] = 110
94
IOAGC1
IOAGCSINK
VAGCSP10
(1)
RF AGC output current
RF AGC peak sink current
Start-point IF output level (1)
dBµV
When AISL = 1, RF AGC function is not available at VHF-L band.
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SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
Electrical Characteristics – Mixer, Oscillator, IF Amplifier
VCC = 5 V, TA = 25°C, measured in Figure 24 reference measurement circuit at 50-Ω system, IF = 44 MHz,
IF filter characteristics: fpeak = 44 MHz (unless otherwise noted)
PARAMETER
Gc1
TEST CONDITIONS
Conversion gain (mixer-IF amplifier), VHF-LOW
Gc3
Gc4
Conversion gain (mixer-IF amplifier), VHF-HIGH
Gc6
Gc7
Conversion gain (mixer-IF amplifier), UHF
Gc9
NF1
NF4
NF7
CM1
CM3
CM4
CM6
CM7
CM9
VIFO1
35
fin = 177 MHz (1)
35
MHz (1)
35
fin = 473 MHz (1)
35
fin = 864 MHz (1)
35
fin = 467
9
9
fin = 177 MHz
9
fin = 467 MHz
9
fin = 473 MHz
12
fin = 864 MHz
12
Input voltage causing 1% cross-modulation distortion,
VHF-LOW
fin = 57 MHz (2)
79
MHz (2)
79
Input voltage causing 1% cross-modulation distortion,
VHF-HIGH
fin = 177 MHz (2)
79
fin = 467 MHz (2)
79
fin = 473 MHz (2)
77
fin = 864 MHz (2)
77
Noise figure, UHF
NF9
fin = 171 MHz (1)
fin = 171 MHz
Noise figure, VHF-HIGH
NF6
35
fin = 57 MHz
Noise figure, VHF-LOW
NF3
TYP
fin = 57 MHz (1)
Input voltage causing 1% cross-modulation distortion, UHF
fin = 171
fin = 57 MHz
117
fin = 171 MHz
117
fin = 177 MHz
117
fin = 467 MHz
117
fin = 473 MHz
117
fin = 864 MHz
117
ΦPLVL11
fin = 57 MHz, Offset = 1 kHz (3)
–90
ΦPLVL12
fin = 57 MHz, Offset = 10 kHz (4)
–95
kHz (5)
–85
VIFO3
VIFO4
VIFO6
VIFO7
VIFO9
ΦPLVL31
IF output voltage, VHF-LOW
IF output voltage, VHF-HIGH
IF output voltage, UHF
Phase noise, VHF-LOW
fin = 171 MHz, Offset = 1
ΦPLVL32
fin = 171 MHz, Offset = 10 kHz (4)
–95
ΦPLVL41
fin = 177 MHz, Offset = 1 kHz (3)
–85
ΦPLVL42
ΦPLVL61
Phase noise, VHF-HIGH
fin = 177 MHz, Offset = 10
kHz (4)
–90
fin = 467 MHz, Offset = 1 kHz (5)
–77
ΦPLVL62
fin = 467 MHz, Offset = 10 kHz (4)
–90
ΦPLVL71
fin = 473 MHz, Offset = 1 kHz (3)
–80
ΦPLVL72
ΦPLVL91
ΦPLVL92
(1)
(2)
(3)
(4)
(5)
10
Phase noise, UHF
fin = 473 MHz, Offset = 10
kHz (4)
–85
fin = 864 MHz, Offset = 1 kHz (5)
–77
fin = 864 MHz, Offset = 10 kHz (4)
–90
IF = 44 MHz, RF input level = 70 dBµV, differential output
fundes = fdes ±6 MHz, Pin = 70 dBµV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB
CP[1:0] = 10 (CP current 350 µA), RS[2:0] = 011 (reference divider 64)
CP[1:0] = 00 (CP current 70 µA), RS[2:0] = 100 (reference divider 128)
CP[1:0] = 11 (CP current 600 µA), RS[2:0] = 011 (reference divider 64)
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UNIT
dB
dB
dB
dB
dB
dB
dBµV
dBµV
dBµV
dBµV
dBµV
dBµV
dBc/Hz
dBc/Hz
dBc/Hz
SN761668
DIGITAL TV TUNER IC
www.ti.com
SLES199 – JANUARY 2007
Electrical Characteristics – IF Gain Controlled Amplifier
VCC = 5 V, TA = 25°C, measured in Figure 24 reference measurement circuit at 50-Ω system, IF = 44 MHz,
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
30
60
UNIT
µA
2.5
VCC
V
0
0.4
V
53
57
dB
–1
2
dB
IIFGCA
Input current (IF GCA CTRL)
VIFGCA = 3 V
VIFGCAMAX
Maximum gain control voltage
Gain maximum
VIFGCAMIN
Minimum gain control voltage
Gain minimum
GIFGCAMAX
Maximum gain
VIFGCA = 3 V
49
GIFGCAMIN
Minimum gain
VIFGCA = 0 V
–4
GCRIFGCA
Gain control range
VIFGCA = 0–3 V
54
dB
VIFGCAOUT
Output voltage
Single-ended output
2.1
Vp-pF
NFIFGCA
Noise figure
VIFGCA = 3 V
8.5
dB
IM3IFGCA
Third order intermodulation distortion
fIFGCAIN1 = 43 MHz,
fIFGCAIIN2 = 44 MHz,
VIFGCAOUT = –2 dBm,
VIFGCA = 3 V
–50
dBc
IIP3IFGCA
Input intercept point
VIFGCA = 0 V
11
dBm
RIFGCAIN
Input resistance (IF GCA IN1, IF GCA IN2)
1
kΩ
Functional Description
I2C Bus Mode
I2C Write Mode (R/W = 0)
Table 1. Write Data Format
MSB
LSB
(1)
Address byte (ADB)
1
1
0
0
0
MA1
MA0
R/W = 0
A
Divider byte 1 (DB1)
0
N14
N13
N12
N11
N10
N9
N8
A
Divider byte 2 (DB2)
N7
N6
N5
N4
N3
N2
N1
N0
A
Control byte 1 (CB1)
1
0
ATP2
ATP1
ATP0
RS2
RS1
RS0
A
CP1
CP0
AISL
P5
BS4
BS3
BS2
BS1
A
1
1
ATC
STBY
T3
T2
T1/ATSS
T0/XLO
A
Band-switch byte (BB)
Control byte 2 (CB2)
(1)
A: Acknowledge
Table 2. Write Data Symbol Description
SYMBOL
DESCRIPTION
MA[1:0]
Address-set bits (see Table 3)
N[14:0]
Programmable counter set bits
DEFAULT
N14 = N13 = N12 = ... = N0 = 0
N = N14 × 214 + N13 × 213 + ... + N1 × 2 + N0
ATP[2:0]
RF AGC start-point control bits (see Table 4)
ATP[2:0] = 011
RS[2:0]
Reference divider ratio-selection bits (see Table 5)
RS[2:0] = 111
CP[1:0]
Charge-pump current-set bit (see Table 6)
CP[1:0] = 11
AISL
RF AGC detector input selection bit
AISL = 0
AISL = 0: IF amplifier
AISL = 1: Mixer output
P5
Port output/ADC input control bit
P5 = 0
P5 = 0: ADC INPUT
P5 = 1: Tr = ON
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DIGITAL TV TUNER IC
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Table 2. Write Data Symbol Description (continued)
SYMBOL
BS[4:1]
DESCRIPTION
Band-switch control bits
DEFAULT
BSn = 0
BSn = 0: Tr = OFF
BSn = 1: Tr = ON
Band selection by BS[1:2]
ATC
BS1
BS2
1
0
0
1
0
1
0
1
VHF-LO
VHF-HI
UHF
Reserved
RF AGC current-set bit
ATC = 0
ATC = 0: Current = 300 nA
ATC = 1: Current = 15 µA
STBY
Power standby mode-control bit
STBY = 0
STBY = 0: Normal operation
STBY = 1: Standby mode/stop MOP function
(XTALOUT is available even in standby mode)
T3, T2,
T1/ATSS,
T0/XLO
TEST bits, RFAGC shift bit, XTALOUT control bit (see Table 7)
X
Don't care
12
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T[3:0] = 0010
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Table 3. Address Selection
MA1
MA0
0
0
0 V to 0.1 VCC (Low)
VOLTAGE APPLIED ON AS INPUT
0
1
OPEN, or 0.2 VCC to 0.3 VCC (Mid2)
1
0
0.4 VCC to 0.6 VCC (Mid1)
1
1
0.9 VCC to VCC (High)
Table 4. RF AGC Start Point (1)
(1)
T1/ATSS
ATP2
ATP1
ATP0
IFOUT LEVEL (dBµV)
0
0
0
0
117
0
0
0
1
114
0
0
1
0
111
0
0
1
1
108
0
1
0
0
105
0
1
0
1
102
0
1
1
0
99
0
1
1
1
Disabled
1
0
0
0
112
1
0
0
1
109
1
0
1
0
106
1
0
1
1
103
1
1
0
0
100
1
1
0
1
97
1
1
1
0
94
1
1
1
1
Disabled
When AISL = 1, RF AGC function is not available at VHF-L band (output level is undefined).
Table 5. Reference Divider Ratio
RS2
RS1
RS0
REFERENCE DIVIDER RATIO
0
0
0
24
0
0
1
28
0
1
0
50
0
1
1
64
1
0
0
128
1
X
1
80
Table 6. Charge-Pump Current
CHARGE PUMP CURRENT
(µA)
CP1
CP0
0
0
70
0
1
140
1
0
350
1
1
600
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Table 7. Test Bits/XTALOUT Control
(1)
(1)
XTALOUT
4-MHz OUTPUT
T3
T2
T1/ATSS
T0/XLO
DEVICE OPERATION
0
0
X
0
Normal operation
Enabled
0
0
X
1
Normal operation
Disabled
X
1
X
X
Test mode
Not available
1
X
X
X
Test mode
Not available
RFAGC and XTALOUT are not available in test mode.
Example I2C Data Write Sequences
Telegram examples:
Start-ADB-DB1-DB2-CB1-BB-CB2-Stop
Start-ADB-DB1-DB2-Stop
Start-ADB-CB1-BB-CB2-Stop
Start-ADB-CB1-BB-Stop
Start-ADB-CB2-Stop
Abbreviations:
ADB: Address byte
BB: Band-switch byte
CB1: Control byte 1
CB2: Control byte 2
DB1: Divider byte 1
DB2: Divider byte 2
Start: Start condition
Stop: Stop condition
I2C Read Mode (R/W = 1)
Table 8. Read Data Format (A: Acknowledge)
MSB
Address byte (ADB)
Status byte (SB)
LSB
1
1
0
0
0
MA1
MA0
R/W = 1
A
POR
FL
1
1
X
A2
A1
A0
–
Table 9. Read Data Symbol Description
SYMBOL
DESCRIPTION
MA[1:0]
Address set bits (see Table 3)
POR
Power-on-reset flag
POR = 1
POR set: power on
POR reset: end-of-data transmission procedure
FL
In-lock flag
A[2:0]
Digital data of ADC (see Table 10)
PLL locked (FL = 1), unlocked (FL = 0)
Bit P5 must be set to 0.
14
DEFAULT
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Table 10. ADC Level
(1)
(1)
A2
A1
A0
1
0
0
0.6 VCC to VCC
VOLTAGE APPLIED ON ADC INPUT
0
1
1
0.45 VCC to 0.6 VCC
0
1
0
0.3 VCC to 0.45 VCC
0
0
1
0.15 VCC to 0.3 VCC
0
0
0
0 V to 0.15 VCC
Accuracy is 0.03 × VCC.
t(High)
tr
t(Low)
SCL
thd(STA)
tsu(DAT)
tf
tsu(STA)
thd(DAT )
tsu(STO)
SDA
t(BUF)
Figure 23. I2C Timing Chart
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APPLICATION INFORMATION
C4
R1
C1
VC1
C3
C37
R30
44
1
VLO OSC B
BS4
BS4
C2
L1
C35
43
2
VLO OSC C
UHF RF IN1
UHF RF IN1
C5
R7
C40
R31
VC2
42
3
VHI OSC B
UHF RF IN2
VHI OSC C
VHI RF IN
VC4
C11
R2
R16
C33
41
4
VHI RF IN
L2
C6
C32
OSC GND
C7
R32
VC3
L4
C15
R4
40
5
C34
C8
R18
VLO RF IN
VLO RF IN
R19
39
6
UHF OSC B1
RF GND
UHF OSC C1
MIXOUT2
C31
38
7
L6
L3
C30
C9
37
8
C12
UHF OSC C2
MIXOUT1
UHF OSC B2
IF IN2
IF GND
IF IN1
L5
R14
R33
R3
36
9
R5
C10
35
10
C36
C13
R22
R15
34
11
IF OUT1
IF OUT1
RF AGC OUT
RF AGC OUT
C29
C14
R21
33
12
IF OUT2
C18
RF AGC FIL
C28
C17
32
13
R6
R8
CP
BS3
VTU
BS2
VCC
BS1
IF GCA IN1
SDA
31
14
VTU
BS3
BS2
C20
C16
30
15
VCC
C19
BS1
C38
29
16
IF GCA IN1
R13
SDA
C42
C27
17
28
IF GCA IN2
R12
SCL
SCL
C26
C43
18
27
IF GCA CTRL
IF GCA CTRL
R11
AS
AS
C25
C44
26
19
R24
BUS GND
IF GCA OUT2
XTAL OUT
C45 20
25
XTALOUT
C39
R25
C46 21
IF GCA OUT1
R21
P5/ADC
IF GCA GND
R10
C23
24
IF GCA OUT1
XTAL2
P5/ADC
XTAL1
C24
X1
22
23
C22
R9
NOTE: This application information is advisory, and a performance-check is required for actual application circuits. TI
assumes no responsibility for the consequences of the use of this circuit, nor for any infringement of patent or patent
rights of third parties that may result from its use.
Figure 24. Reference Measurement Circuit
16
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APPLICATION INFORMATION (continued)
Component Values for Measurement Circuit
PART NAME
VALUE
PART NAME
VALUE
C1 (VLO OSC B)
1 pF
C44 (IF GCA CTRL)
2.2 nF
C2 (VLO OSC C)
2 pF
C45 (IF GCA OUT1)
2.2 nF
C3 (VLO OSC)
47 pF
C46 (IF GCA OUT2)
2.2 nF
C4 (VLO OSC)
Open
L1 (VLO OSC)
φ 3,0 mm, 7T, wire 0,32 mm
C6 (VHI OSC C)
5 pF
L2 (VHI OSC)
φ2,0 mm, 3T, wire 0,4 mm
C7 (UHF OSC B1)
1.5 pF
L3 (UHF OSC)
φ1,8 mm, 3T, wire 0,4 mm
C8 (UHF OSC C1)
1 pF
L4 (UHF OSC)
φ1,8 mm, 3T, wire 0,4 mm
C9 (UHF OSC C2)
1 pF
L5 (MIX OUT)
680 nH (LK1608R68K-T)
C10 (UHF OSC B2)
1.5 pF
L6 (MIX OUT)
680 nH (LK1608R68K-T)
C11 (VHI OSC)
51 pF
R1 (VLO OSC)
3.3 kΩ
C12 (UHF OSC)
10 pF
R2 (VHI OSC)
3.3 kΩ
C13 (IF OUT)
2.2 nF
R3 (UHF OSC)
2.2 kΩ
C14 (IF OUT)
2.2 nF
R4 (UHF OSC)
1 kΩ
C15 (UHF OSC)
100 pF
R5 (VTU)
3 kΩ
C16 (VCC)
4.7 nF
R6 (CP)
47 kΩ
C17 (CP)
0.01 µF/50 V
R7 (VHI OSC)
3.3 kΩ
C18 (CP)
22 pF/50 V
R8 (VTU)
20 kΩ
C19 (VCC)
2.2 nF
R9 (P5/ADC)
Open
C20 (VTU)
2.2 nF/50 V
R10 (XTALOUT)
5.1 kΩ
C21 (P5/ADC)
Open
R11 (AS)
330 Ω
C22 (XTAL)
27 pF
R12 (SCL)
330 Ω
C23 (XTAL)
27 pF
R13 (SDA)
330 Ω
C24 (XTALOUT)
10 pF
R14 (VCC)
0
C25 (AS)
Open
R15 (RF AGC OUT)
0
C26 (SCL)
Open
R16 (UHF RF IN1)
(50 Ω)
C27 (SDA)
Open
R18 (VHI RF IN)
(50 Ω)
C28 (AGC FIL)
Open
R19 (VLO RF IN)
(50 Ω)
C29 (RF AGC OUT)
0.15 µF
R21 (IF OUT2)
1 kΩ
C30 (MIX OUT)
4 pF
R22 (IF OUT1)
1 kΩ
C31 (MIX OUT)
2.2 nF
R24 (IF GCA OUT1)
250 Ω
C32 (VLO RF IN)
2.2 nF
R25 (IF GCA OUT2)
200 Ω
C33 (VHI RF IN)
2.2 nF
R30 (VLO OSC B)
0
C34 (VHI OSC)
0.5 pF
R31 (VHI OSC B)
4.7 Ω
C35 (UHF RF IN1)
2.2 nF
R32 (UHF OSC B1)
0
C36 (VTU)
22 pF
R33 (UHF OSC B2)
0
C37 (VTU)
2.2 nF/50 V
VC1 (VLO OSC)
MA2S374
C38 (VCC)
0.1 µF
VC2 (VHI OSC)
MA2S374
C39 (XTAL OUT)
2.2 nF
VC3 (UHF OSC)
MA2S372
C40 (UHF RF IN2)
2.2 nF
VC4 (VHI OSC)
MA2S372
C42 (IF GCA IN1)
2.2 nF
X1
4-MHz crystal
C43 (IF GCA IN1)
2.2 nF
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APPLICATION INFORMATION (CONTINUED)
Test Circuits
DUT
SG
50 W
50 W
VIN
IF OUT1
VLO RF IN
(VHI RF IN)
Spectrum
Analyzer
VOUT Diff
VOUT
IF OUT2
50 W
Gc = 20log(VOUT Diff/VIN)
= 20log(VOUT/VIN) + 6
50 W
Figure 25. VHF-Conversion Gain-Measurement Circuit
DUT
SG
UHF RF IN1
50 W
50 W
VIN
IF OUT1
UHF RF IN2
Spectrum
Analyzer
VOUT Diff
VOUT
IF OUT2
50 W
50 W
Figure 26. UHF-Conversion Gain-Measurement Circuit
NF
Meter
Noise
Source
DUT
Figure 27. Noise-Figure Measurement Circuit
Signal
Generator
fdes: P = 70 dBmV
Signal
Generator
Mix
Pad
fdes ±6 MHz
AM 30%, 1 kHz
DUT
Modulation
Analyzer
Figure 28. 1% Cross-Modulation Distortion Measurement Circuit
18
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Gc = 20log(VOUT Diff/VIN)
= 20log(VOUT/VIN) + 6
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TYPICAL CHARACTERISTICS
Band-Switch Driver Output Voltage (BS1–BS4)
BS OUTPUT CURRENT
vs
OUTPUT VOLTAGE
VBS – Band-Switch Driver Output Voltage – V
5
VCC = 5.5 V
VCC = 5 V
4
VCC = 4.5 V
3
2
1
0
2
4
6
8
10
12
14
16
18
20
IBS – BS Current – mA
Figure 29. Band-Switch Driver Output Voltage
S-Parameter
1
0
¥
50 MHz
430 MHz
1
Figure 30. VLO RFIN, VHI RFIN
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TYPICAL CHARACTERISTICS (continued)
1
0
¥
440 MHz
860 MHz
1
Figure 31. UHF RFIN
1
60 MHz
0
¥
30 MHz
1
Figure 32. IFOUT
20
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TYPICAL CHARACTERISTICS (continued)
IF GCA Gain
vs
Control Voltage
60
50
40
Gain (dB)
VCC = 4.5 V
VCC = 5.0 V
30
20
VCC = 5.5 V
10
0
–10
0.0
0.5
1.0
1.5
2.0
2.5
3.0
IF GCA Control Voltage (V)
Figure 33. IF GCA Gain vs Control Voltage
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PACKAGE OPTION ADDENDUM
www.ti.com
13-Dec-2006
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
SN761668DBTR
PREVIEW
SM8
DBT
Pins Package Eco Plan (2)
Qty
44
2000
TBD
Lead/Ball Finish
Call TI
MSL Peak Temp (3)
Call TI
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
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