Position: Home  > All Categories> Integrated Circuits (ICs) > TDA4857PS

TDA4857PS

Features: · Full horizontal plus vertical autosync capability· Extended horizontal frequency range from 15 to 130 kHz· Comprehensive set of I2C-bus driven geometry adjustments and functions, including standby mode· Very good vertical linearity· Moire cancellation· Start-up and switch-off sequence ...

product image

TDA4857PS Picture
See larger image
SeekIC No. : 004516390 Detail

TDA4857PS: Features: · Full horizontal plus vertical autosync capability· Extended horizontal frequency range from 15 to 130 kHz· Comprehensive set of I2C-bus driven geometry adjustments and functions, includi...

TDA4857PS Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
TDA4857PS
Supply Ability:
5000

Price Break

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

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2025/1/12

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

· Full horizontal plus vertical autosync capability
· Extended horizontal frequency range from 15 to 130 kHz
· Comprehensive set of I2C-bus driven geometry adjustments and functions, including standby mode
· Very good vertical linearity
· Moire cancellation
· Start-up and switch-off sequence for safe operation of all power components
· X-ray protection
· Flexible switched mode B+ supply function block for feedback and feed forward converter
· Internally stabilized voltage reference
· Drive signal for focus amplifier with vertical parabol waveforms
· DC controllable inputs for Extremely High Tension (EHT) compensation
· SDIP32 package.

Synchronization

· Can handle all sync signals (horizontal, vertical, composite and sync-on-video)
· Output for video clamping (leading/trailing edge selectable by I2C-bus), vertical blanking and protection blanking
· Output for fast unlock status of horizontal synchronization and blanking on grid 1 of picture tube.

Horizontal section

· I2C-bus controllable wide range linear picture position, pin unbalance and parallelogram correction via horizontal phase
· Frequency-locked loop for smooth catching of horizontal frequency
· Simple frequency preset of fmin and fmax by external resistors
· Low jitter
· Soft start for horizontal and B+ control drive signals.

Vertical section

· I2C-bus controllable vertical picture size, picture position, linearity (S-correction) and linearity balance
· Output for I2C-bus controllable vertical sawtooth and parabola (for pin unbalance and parallelogram)
· Vertical picture size independent of frequency
· Differential current outputs for DC coupling to vertical booster
· 50 to 160 Hz vertical autosync range.

East-West (EW) section

· I2C-bus controllable output for horizontal pincushion, horizontal size, corner and trapezium correction
· Optional tracking of EW drive waveform with line frequency selectable by I2C-bus.

Focus section

· I2C-bus controllable output for vertical parabola
· Vertical parabola is independent of frequency and tracks with vertical adjustments.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VCC supply voltage   -0.5 +16 V
Vi(n) input voltage for pins:
BIN
HSYNC, VSYNC, VREF, HREF, VSMOD and HSMOD
SDA and SCL
XRAY		   -0.5
-0.5
-0.5
-0.5		 +6.0
+6.5
+8.0
+8.0		 V
V
V
V
Vo(n) output voltage for pins:
VOUT2, VOUT1 and HUNLOCK
BDRV and HDRV		   -0.5
-0.5		 +6.5
+16		 V
V
VI/O(n) input/output voltages at pins BOP and BSENS   -0.5 +6.0 V
Io(HDRV) horizontal driver output current   - 100 mA
Ii(HFLB) horizontal flyback input current   -10 +10 mA
Io(CLBL) video clamping pulse/vertical blanking output current   - -10 mA
Io(BOP) B+ control OTA output current   - 1 mA
Io(BDRV) B+ control driver output current   - 50 mA
Io(EWDRV) EW driver output current   - -5 mA
Io(FOCUS) focus driver output current   - -5 mA
Tamb ambient temperature   -20 +70 °C
Tj junction temperature   - 150 °C
Tstg storage temperature   -55 +150 °C
VESD electrostatic discharge for all pins note 1 -150 +150 V
note 2 -2000 +2000 V

Notes
1. Machine model: 200 pF; 0.75 H; 10 W.
2. Human body model: 100 pF; 7.5 H; 1500 W.


Description

The TDA4857PS is a high performance and efficient solution for autosync monitors. All functions are controllable by the I2C-bus.

The TDA4857PS provides synchronization processing, horizontal and vertical synchronization with full autosync capability and very short settling times after mode changes. External power components are given a great deal of protection. The IC generates the drive waveforms for DC-coupled vertical boosters such as the TDA486x and TDA835x.

The TDA4857PS provides extended functions e.g. as a flexible B+ control, an extensive set of geometry control facilities and an output for vertical focus signals.

Together with the I2C-bus driven Philips TDA488x video processor family, a very advanced system solution is offered.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Computers, Office - Components, Accessories
DS-4008HCI
LB104V03(A1)
Tapes, Adhesives
803
AC452-2
Test Equipment
TOP853
TOP2005
Static Control, ESD, Clean Room Products
DPA5
PA800-A41
Switches
US32DMRJ
HBGQ22P-11ET
Potentiometers, Variable Resistors
RV24YN
WXD4-23-3W
View more