Broadband tuner on a chip for cable modem, HDTV, and legacy analog standards

Taddiken, Bud; Ezell, W.; Mumper, E.; Clayton, K.W.; Douglass, J.D.; Birleson, V.; Esquivel, J.; Werther, O.; Schneider, Axel; Bolton, J Stuart; White, B.; Dawe, G.; Lafuente, M.; Richter, K.; Michon, Jérôme; Ruiz, J. L.; Norsworthy, J.

doi:10.1109/rfic.2000.854407

Cited by 7 publications

(7 citation statements)

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“…1, transistors Q5, Q6, Q7, Q8 make up of the buffer. Then the gain of first stage can be estimated by (5).…”

Section: A First Stage Amplifiermentioning

confidence: 99%

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A High-Gain High-Linearity Wide-Band Low Noise Amplifier for Terrestrial and Cable Receptions

Mao

et al. 2006

2006 International Conference on Communications, Circuits and Systems

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This paper presents the design of a wide-band lownoise amplifier (LNA) implemented in a 0.35 ,um SiGe BiCMOS technology for cable (DVB-C) and terrestrial (DVB-T) tuner applications. The LNA utilizes current injection to achieve high linearity. Without using inductors, the LNA achieves 0.1-1GHz wide bandwidth and 18.8-dB gain with less than 1.4-dB gain variation. The noise figure(NF) of the wideband LNA is 5dB, its 1-dB compression point is-2 dBm and 11P3 is 8dBm. The LNA dissipates 120mW power with a 5-V supply.

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“…1, transistors Q5, Q6, Q7, Q8 make up of the buffer. Then the gain of first stage can be estimated by (5).…”

Section: A First Stage Amplifiermentioning

confidence: 99%

“…On the other hand, a differential architecture relaxes the requirement for large output swing, which improves the linearity. [5] Therefore, a differential architecture is chosen in DVB-C and DVB-T tuner system that requires high linearity. Fig.…”

Section: Introductionmentioning

confidence: 99%

A High-Gain High-Linearity Wide-Band Low Noise Amplifier for Terrestrial and Cable Receptions

Mao

et al. 2006

2006 International Conference on Communications, Circuits and Systems

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“…ecently, as the progress in digital TV, the studies in wide band silicon tuner have received much attention [1,2]. Generally, the architecture of the tuner has the feature of up-down frequency conversion, due to its wide band reception.…”

Section: Introductionmentioning

confidence: 99%

A Design of Image Reject Mixer for DTV Tuner

Kao

2005 Asia-Pacific Microwave Conference Proceedings

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“…Its outputs are composite video, low-IF, and mono sound. The signal processing itself is performed in dedicated analog hardware but all control and alignment functions are realized in the digital domain.There are several silicon tuners available [1][2][3], but they are dedicated to the digital set-top box market. Due to their high power consumption they are not attractive for portable use.…”

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confidence: 99%

“…There are several silicon tuners available [1][2][3], but they are dedicated to the digital set-top box market. Due to their high power consumption they are not attractive for portable use.…”

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confidence: 99%

UMTV: a single chip TV receiver for PDAs, PCs, and cell phones

Rumpt¹,

Kasperkovitz²,

Tang³

et al.

ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005.

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In this paper, a single-chip TV receiver called universal mobile television (UMTV) is presented. UMTV requires no external components and has a power dissipation of 150mW. It is a multi-standard receiver for all analog and digital TV standards. The device needs a single supply of 3V, a 3-wire interface to a microcontroller, and an antenna connection. Its outputs are composite video, low-IF, and mono sound. The signal processing itself is performed in dedicated analog hardware but all control and alignment functions are realized in the digital domain.There are several silicon tuners available [1][2][3], but they are dedicated to the digital set-top box market. Due to their high power consumption they are not attractive for portable use. Furthermore, they still require more than 15 external components like external SAW filters for channel selectivity, a tunable resonator, several external varicaps for the RF oscillator (LO), and multiple tunable RF antenna circuits. For demodulation and sound reception additional ICs and external components are required which are different depending on the TV standard [4].In mobile phones with portable TV applications, advanced technology is used to miniaturize the normal tuner cans. The smallest reported size is 2400mm 3 (20mm×30mm×3mm) [5]. Its power consumption is 900mW. The proposed solution has a size of 45mm 3 (7mm×7mm×0.9mm) and consumes 150mW. In the design of UMTV the following design targets are set: high sensitivity (low NF), low power dissipation, high harmonic suppression, and multi-standard operation (PAL, NTSC, SECAM, DVB-H, etc.). o in the loop will be achieved at different frequencies depending on I2. By controlling the total gain in the loop, sufficient phase margin at gain>1 is obtained to keep the loop stable. By making more phase shift in the loop (e.g., by increasing the order of the LPF) the Q-factor will be higher and the shape of the curve will change. Also, by changing the ratio of C1, C2, and C3 the Q-factor can be controlled. For an LNA to keep the noise at a low level, it is important to keep component count as low as possible. This wideband tunable LNA is designed in silicon with only 5 transistors and no dominant resistors in the signal path. The LNA measurement results are given in Fig. 23.2.4. Frequency response for various tuning currents is shown. The inset in Fig. 23.2.4 shows that the NF is always better than 9dB over the total VHF and UHF band (40MHz to 900MHz). This NF is measured at the end of the IF filter/amplifier, so it includes the LNA itself, the mixer construction for suppression of the 3 rd and 5 th harmonics, the active-IF filter, and the IF amplifier. The suppression of the 3 rd , 5 th , and the 7 th harmonics is better than 60dB, 80dB and 50dB over the whole TV band. The LNA draws a total current of 2mA at 40MHz and 3mA at 900MHz, respectively. The supply range is 2.7V to 5V.Another crucial block of the UMTV chip is the LO. It is a quadrature oscillator with a tuning range from 420 to 900MHz. The principle of the integrated digita...

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Broadband tuner on a chip for cable modem, HDTV, and legacy analog standards

Cited by 7 publications

References 0 publications

A High-Gain High-Linearity Wide-Band Low Noise Amplifier for Terrestrial and Cable Receptions

A High-Gain High-Linearity Wide-Band Low Noise Amplifier for Terrestrial and Cable Receptions

A Design of Image Reject Mixer for DTV Tuner

UMTV: a single chip TV receiver for PDAs, PCs, and cell phones

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