Multiband multistandard direct-conversion TV tuner...

Ver. 1.1 August 2011 www.ntlab.com

Multiband multistandard direct-conversion TV tuner

SPECIFICATION

1 FEATURES TSMC 0.18 um SiGe BiCMOS technology Direct conversion receiver A few number of external components 0.18 um SiGe BiCMOS technology Integrated 75 Ω input matched LNAs Integrated tunable bandwidth channel filters (1…12 MHz) with adjustment to maintain

the cut-off frequency over all process variations I/Q differential outputs Dual automatic gain control AGC (RF & Baseband AGC) Integrated fractional-N frequency synthesizer Integrated VCO with quadrature outputs Integrated reference oscillator with output buffer Integrated voltage regulator Fully controlled via I2C serial interface Less than 15 mW power consumption in DVB-H mode with 10:1 time slicing Power down mode 2.8-3.6V power supply

2 APPLICATION Navigation systems Portable receivers Mobile communication Measuring equipment

3 OVERVIEW The NT1022 is multiband multistandard direct-conversion TV tuner designed for Mobile Digital TV applications. The TV tuner supports DVB-H, DVB-T, IP-DAB, T-DMB, FM standards and covers FM (75 MHz to 108 MHz), VHF (170 MHz to 240 MHz), UHF (470 MHz to 860 MHz) bands and L-band (both 1450 MHz to 1490 MHz and 1660 MHz to 1685 MHz). So it is suitable for digital TV reception on portable devices almost anywhere in the world. Based on direct-conversion architecture with zero-IF NT1022 is optimal solution for television signal receiving. The TV tuner is a highly integrated circuit therefore a few external components are required. A programmable serial interface allows status monitoring and controlling all the internal operations and test modes. The IC is fabricated on TSMC 0.18 um SiGe BiCMOS technology.

0180IP_NT1022 Multiband multistandard direct-conversion TV tuner

Ver. 1.1 page 2 of 11 www.ntlab.com

4 PAD DESCRIPTION Pad number Name Description

1A VCC_RF RF circuits supply voltage 1B 2 LNA1_IN VHF LNA input 3 LNA2_IN UHF LNA input 4 LNA3_IN L band LNA input

5A GND_RF RF circuits ground 5B 6 AGC_RF RF AGC capacitor 7 Rref Reference resistor

8 SDN Negative shutdown input for receive/pause in packet mode

9 LDO_OUT LDO voltage regulator output 10A

VCC_DIG PLL voltage supply 10B

11 SDA Serial interface data 12 SCL Serial interface clock

13A GND_DIG PLL ground 13B 14 I_AGC I channel BB AGC capacitor 15 Q_AGC Q channel BB AGC capacitor

16A VCC_BB IFA & LPF supply voltage 16B

17 Q_OCC Q channel DC offset compensation circuit (DCOC) capacitor

18 QOUT_P Q channel differential outputs 19 QOUT_N 20 I_OCC I channel DCOC capacitor 21 IOUT_N I channel differential outputs 22 IOUT_P

23A GND_BB IFA & LPF ground 23B 24 XT1 Xtal oscillator input 1 25 XT2 Xtal oscillator input 2 26 XT_OUT Clock frequency output

27A VCC_CP PFD & Charge pump supply voltage 27B 28A GND_CP PFD & Charge pump ground 28B 29 CP_OUT Charge pump output

30A GND_VCO VCO ground 30B 31 ADR Slave address

32A VCC_VCO VCO supply voltage 32B



5 TYPICAL APPLICATION CIRCUIT

Figure 1: NT1022 application circuit.



Table 1: External component description

Component Nominal value Tolerance Notes

C1 0.1 uF ±10 % Supply voltage filter capacitor C2 220 pF ±5 % Supply voltage filter capacitor C3 1 nF ±5 % Blocking capacitor C4 220 pF ±5 % Blocking capacitor C5 220 pF ±5 % Blocking capacitor C6 470 pF ±5 % RF AGC filter capacitor C7 470 pF ±5 % RF AGC filter capacitor C8 2.2 uF ±10 % Voltage regulator output filter capacitor C9 0.1 uF ±10 % Supply voltage filter capacitor C10 0.47* uF ±10 % BB AGC filter capacitor C11 0.47* uF ±10 % BB AGC filter capacitor C12 10 uF ±20 % Supply voltage filter capacitor C13 2.2 uF ±10 % Supply voltage filter capacitor C14 4.7 uF ±10 % DCOC capacitor (X5R ceramic) C15 4.7 uF ±10 % DCOC capacitor (X5R ceramic) C16 22 pF ±5 % Ceramic capacitor C17 22 pF ±5 % Ceramic capacitor C18 2.2 pF ±5 % Supply voltage filter capacitor C19 470 pF ±5 % Supply voltage filter capacitor C20 0.1 uF ±5 % PLL filter capacitor C21 10 pF ±5 % PLL filter capacitor C22 2.2 uF ±10 % Supply voltage filter capacitor R1 10 Ω ±5 % Supply voltage filter resistor R2 10* Ω ±5 % RF AGC filter resistor R3 61.9 kΩ ±1 % High precision resistor R4 10 Ω ±5 % Supply voltage filter resistor R5 10* Ω ±5 % BB AGC filter resistor R6 10* Ω ±5 % BB AGC filter resistor R7 10 Ω ±5 % Supply voltage filter resistor R8 10 Ω ±5 % Supply voltage filter resistor R9 12 kΩ ±5 % PLL filter resistor R10 10 Ω ±5 % Supply voltage filter resistor Y1 10 – 27 MHz - Crystal Note: * – is defined depending on PCB construction and purpose.



6 LAYOUT DESCRIPTION TV tuner dimensions are given in the table 2. Table 2: Block dimensions.

Dimension Value Unit

Height 2898.9 µm Width 2898.9 µm

Figure 2: Block layout view



7 OPERATING CHARACTERISTICS

7.1 TECHNICAL CHARACTERISTICS Technology __________________________________________ TSMC SiGe BiCMOS 0.18 μm Status __________________________________________________________ silicon proven Area 8.4 mm2

7.2 DC ELECTRICAL CHARACTERISTICS The values of electrical characteristics are specified for VCC = 2.8 V to 3.6V, T =-40…+85°C. Typical values are at VCC = 3.0V, T =+25°C, unless otherwise specified.

Parameter Symbol Condition Value

Unit Min Typ Max

Supply voltage Vcc - 2.8 3.0 3.6 V

Supply current Icc Active mode - 44 60 mA Istb Stand-by mode - 0.1 1 µA IPM Packet mode, 10:1 - 3.3 5 mA

RF AGC control voltage VAGC_RF Maximum gain - Vcc – 1 - V Minimum gain - 0 -

Baseband AGC control voltage VAGC_BB

Maximum gain - Vcc – 0.6 - V Minimum gain - 0.5 - Input logic-level low VIL - -0.25 - 0.3 V Input logic-level high VIH - 0.7Vcc - Vcc +0.25 V

7.3 AC ELECTRICAL CHARACTERISTICS The values of electrical characteristics are specified for VCC = 2.8 V to 3.6 V, T =-40…+85°C. Typical values are at VCC = 3.0 V, T =+25°C, unless otherwise specified.

Parameter Symbol Condition Value Unit Min Typ Max Overall

Operating frequency range FIN

FM 75 - 108

MHz VHF 170 - 240 UHF 470 - 860 L1 1450 - 1490 L2 1660 - 1685

Noise figure (DSB) NF - - 5.5 - dB Input VSWR VSWRIN 75 Ω - 1.35 1.5 - Maximum input signal level Pin MAX - - - -18 dBm Overall voltage gain G - - 90 - dB IQ phase accuracy Δφ I/Q phase error at 1 MHz -3 - +3 degrees IQ amplitude accuracy ΔA - - 25 - mVp-p RF AGC range ΔGRF - 35 - - dB BB AGC range ΔGBB - 55 - - dB IFA&LPF Output frequency range FBB - 0 - 6 MHz Nominal output voltage Vout - - 1 - Vp-p Output impedance Rout Differential - 1.5 - kΩ LPF bandwidth BWLPF - 1 - 12 MHz



Table “AC electrical characteristics” (continue). Parameter Symbol Condition Value Unit Min Typ Max

Synthesizer

Phase noise PNLO

At 100 kHz frequency offset, single-sideband, closed loop

- -85 - dBc/Hz

Reference frequency Fref - 3 - 27 MHz N divider ratio N - 64 - 2047 - R divider ratio R - 1 - 31 - Fractional-N resolution Res - - 24 - Bit Frequency comparison FFC - 2 - 27 MHz

Charge-pump output current ICP

Preset 1 - 42.5…72.5 -

µA Preset 2 - 85…145 - Preset 3 - 170…290 - Preset 4 - 340…580 -

VCO frequency range FVCO

VCO 1 1000

-

1450

MHz VCO 2 1550 2200 VCO 3 2600 3350 VCO 4 2950 3600

Output clock frequency Fclk - 3 - 27 MHz

Clock frequency output peak-to-peak voltage Aclk

Preset 1 - 0.2 -

Vp-p Preset 2 - 0.38 - Preset 3 - 0.55 - Preset 4 - 0.75 - CMOS - 1.8 -



8 TYPICAL OPERATING CHARACTERISTICS

Figure 3: Noise figure vs. FM band

Figure 4: Noise figure vs. VHF band

Figure 5: Noise figure vs. UHF band

Figure 6: Noise figure vs. L1 band Figure 7: Noise figure vs. L2 band



Figure 8: Phase noise vs. offset frequency (FM)

Figure 9: Phase noise vs. offset frequency (VHF III)

Figure 10: Phase noise vs. offset frequency (UHF)



Figure 11: Phase noise vs. offset frequency (L1-L2)

Figure 12: BB AGC range

Figure 13: RF AGC range



9 DELIVERABLES IP contents:

Datasheet Layout View (GDSII) Evaluation kit based on packaged IC Characterization Report Behavioral Model SPICE netlist (.cdl) Integration Support

REVISION HISTORY 1. From version 1.0: The section “Absolute maximum rating” was added (refer to p.6) The section “Typical operating characteristics” was added (refer to p.7)

Multiband multistandard direct-conversion TV tuner...

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