TUA6014

Features: • Suitable for NTSC and PAL tuners• Full ESD protection• High impedance mixer input for VHF• Low impedance mixer input for UHF• 4 pin oscillator for VHF• 4 pin oscillator for UHF• PLL with short lock-in time;no asynchronous divider stage• H...

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SeekIC No. : 004533799 Detail

TUA6014: Features: • Suitable for NTSC and PAL tuners• Full ESD protection• High impedance mixer input for VHF• Low impedance mixer input for UHF• 4 pin oscillator for VHF•...

floor Price/Ceiling Price

Part Number:
TUA6014
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

• Suitable for NTSC and PAL tuners
• Full ESD protection
• High impedance mixer input for VHF
• Low impedance mixer input for UHF
• 4 pin oscillator for VHF
• 4 pin oscillator for UHF
• PLL with short lock-in time;no asynchronous divider stage
• High voltage VCO tuning output
• Fast I2C Bus
• 4 NPN bandswitch buffers
• Internal VHF/UHF switch
• Lock-in flag
• Power-down reset
• Programmable reference divider ratio (64, 80, 128)
• Programmable charge pump current



Application

The ICs are suitable for PAL and NTSC tuners in TV- and VCR-sets or cable set-top receivers for analog TV and Digital Video Broadcasting.


Pinout

  Connection Diagram


Specifications

Parameter 1)
Symbol
Limit Values
Unit
Test Conditions
min. max.
Supply voltage VVCC - 0.3 5.5 V  
Junction temperature TJ   125  
Storage temperature TStg - 40 125  
Thermal resistance
(junction to ambient)
RthSA   125 K/W  
PLL
CHGPMP VCHGPMP - 0.3 3 V  
ICHGPMP   1 mA  
Crystal oscillator pins Q VQ   VVCC V  
IQ - 5   mA  
Bus input/output SDA VSDA - 0.3 VVCC V  
Bus output current SDA ISDA(L)   5 mA Open collector
Bus input SCL VSCL - 0.3 VVCC V  
Chip address switch CAS VCAS - 0.3 VVCC V  
VCO tuning output
(loop filter)
VTUNE - 0.3 35 V  
Port outputs P0...P3 VP - 0.3 VVCC V  
IP(L) -1 15 mA tmax = 0.1 s at 5.5 V
Total port output current IP(L)   20 mA tmax = 0.1 s at 5.5 V

Mixer-Oscillator
Mix inputs VHF/HYPER VMIXV - 0.3 3 V
Mix inputs UHF VMIXU   2 V
IMIXU -5 6 mA
VCO base voltage VB - 0.3 3 V
VCO collector voltage VC   VVCC V
IF output VIFout   6 V
VIFout   6 V



Description

The TUA6012, TUA6014 devices combine a digitally programmable phase locked loop (PLL), with a mixer-oscillator block including two balanced mixers and oscillators for use in TV tuners.

The PLL block with four hard-switched chip addresses forms a digitally programmable phase locked loop. With a 4 MHz quartz crystal, the PLL permits precise setting of the frequency of the tuner oscillator up to 900 MHz in increments of 50 kHz, 62.5 kHz or 31.25 kHz. The tuning process is controlled by a microprocessor via an I2C Bus. The device has four output ports, two of them (P0 and P1) can also be used as TTL input ports. A flag is set when the loop is locked. The input ports and lock flag can be read by the processor via the I2C Bus.

The mixer-oscillator block includes two balanced mixers (double balanced mixer with high-impedance input for VHF low, VHF high and low-impedance input for UHF), two frequency and amplitude-stable balanced oscillators for VHF low, VHF high and UHF, a low-noise reference voltage source and a band switch.




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