ES2186601T3 - Dispositivo de conmutacion de banda. - Google Patents

Dispositivo de conmutacion de banda.

Info

Publication number
ES2186601T3
ES2186601T3 ES00102462T ES00102462T ES2186601T3 ES 2186601 T3 ES2186601 T3 ES 2186601T3 ES 00102462 T ES00102462 T ES 00102462T ES 00102462 T ES00102462 T ES 00102462T ES 2186601 T3 ES2186601 T3 ES 2186601T3
Authority
ES
Spain
Prior art keywords
band
digital
band switching
switching device
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES00102462T
Other languages
English (en)
Inventor
Manfred Reiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microtune GmbH and Co KG
Original Assignee
Microtune GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microtune GmbH and Co KG filed Critical Microtune GmbH and Co KG
Application granted granted Critical
Publication of ES2186601T3 publication Critical patent/ES2186601T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means

Landscapes

  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

Dispositivo de conmutación de banda para un sintonizador de n bandas con una salida de conmutación de banda (BS'') y un circuito integrado PLL (17), que presenta una bomba de carga, un divisor de frecuencia, un detector de fases, una entrada de mando I2C (18), una salida de oscilador (OSZ'') y por lo menos N salidas digitales, habiéndose previsto la salida de conmutación de banda y la salida del oscilador (OSZ'') para el acoplamiento a una mezcla/etapa de oscilador (15), para ajustar una frecuencia predeterminada, y N salidas digitales (P0 a P3) para la conmutación de la correspondiente entrada HF (10) del sintonizador de N bandas, caracterizado porque la bomba de carga genera una corriente comprendida entre un valor mínimo y un valor máximo, el divisor de frecuencia presenta una relación de división menor de 512, el circuito PLL (17) presenta por lo menos N+1 salidas digitales el dispositivo de conmutación de banda (20) comprende, por lo menos, un divisor de tensión de N-1 elementos de resistencia (21, 22) N+1 salidas digitales, estando conectado en serie un primer elemento de resistencia (21) entre una tensión de alimentación VCC y una salida digital (PO) N+1, un segundo elemento de resistencia entre la salida digital N+1 y una primera de otras salidas digitales (P1) N-2 y los elementos de resistencia restantes N-3, siempre entre otras dos salidas digitales N-2, y la salida digital (PO) N+1 forma la salida de conmutación de banda (PS¿)para la conmutación mezcla/etapa de oscilador.
ES00102462T 1999-02-04 2000-02-04 Dispositivo de conmutacion de banda. Expired - Lifetime ES2186601T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904588A DE19904588C2 (de) 1999-02-04 1999-02-04 Bandumschalteinrichtung

Publications (1)

Publication Number Publication Date
ES2186601T3 true ES2186601T3 (es) 2003-05-16

Family

ID=7896469

Family Applications (1)

Application Number Title Priority Date Filing Date
ES00102462T Expired - Lifetime ES2186601T3 (es) 1999-02-04 2000-02-04 Dispositivo de conmutacion de banda.

Country Status (4)

Country Link
EP (1) EP1026825B1 (es)
AT (1) ATE228731T1 (es)
DE (2) DE19904588C2 (es)
ES (1) ES2186601T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109876595B (zh) * 2019-03-26 2024-01-26 北京科技大学 一种辅床回热变温吸附系统及工艺
CN110121042B (zh) * 2019-04-19 2021-09-21 深圳康佳电子科技有限公司 一种按键电路、电视按键板和电视机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196197B (en) * 1986-10-01 1990-09-19 Telefunken Electronic Gmbh Television tuner
JP2596488Y2 (ja) * 1992-10-01 1999-06-14 アルプス電気株式会社 フィルタ回路
DE4342344C2 (de) * 1993-12-11 1996-07-25 Telefunken Microelectron Schaltungsanordnung für eine Phasenregelschleife
US5752179A (en) * 1995-08-17 1998-05-12 Zenith Electronics Corporation Selective RF circuit with varactor tuned and switched bandpass filters

Also Published As

Publication number Publication date
DE50000802D1 (de) 2003-01-09
EP1026825B1 (de) 2002-11-27
EP1026825A1 (de) 2000-08-09
DE19904588C2 (de) 2003-03-27
DE19904588A1 (de) 2000-08-31
ATE228731T1 (de) 2002-12-15

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