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TSA5527

Features: ` Complete 1.3 GHz single chip system` Four PNP band switch buffers (40 mA)` 33 V output tuning voltage` In-lock detector` 5-step ADC` 15-bit programmable divider` Programmable reference divider ratio (512, 640 or 1024)` Programmable charge-pump current (60 or 280 mA)` Programmable autom...

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SeekIC No. : 004529099 Detail

TSA5527: Features: ` Complete 1.3 GHz single chip system` Four PNP band switch buffers (40 mA)` 33 V output tuning voltage` In-lock detector` 5-step ADC` 15-bit programmable divider` Programmable reference d...

TSA5527 Data Sheet

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Part Number:
TSA5527
Supply Ability:
5000

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

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Upload time: 2025/1/11

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Product Details

Description



Features:

` Complete 1.3 GHz single chip system
` Four PNP band switch buffers (40 mA)
` 33 V output tuning voltage
` In-lock detector
` 5-step ADC
` 15-bit programmable divider
` Programmable reference divider ratio (512, 640 or 1024)
` Programmable charge-pump current (60 or 280 mA)
` Programmable automatic charge-pump current switch
` Varicap drive disable
` Universal bus protocol I2C-bus or 3-wire bus:
bus protocol for 18 or 19 bits transmission (3-wire bus)
extra protocol for 27 bits for test and features (3-wire bus)
address plus 4 data bytes transmission (I2C-bus write mode)
address plus 1 status byte transmission (I2C-bus read mode)
three independent I2C-bus addresses
` Low power and low radiation.


Application

· TV tuners and front ends
· VCR tuners


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER MIN. MAX. UNIT
VCC1 supply voltage; +5 V (pin 3)
 -0.3 +6.0 V

VCC2

 band switch supply voltage; +12 V (pin 4) -0.3 +16 V
Vi(RF) prescaler input voltage (pin 1) -0.3 +Vcc1 V
Vo(BSn) band switch buffers output voltage (pins 5 to 8) -0.3 +Vcc2 V
Io(BSn) band switch buffers output current -1 +50 mA
Vo(CP) charge-pump output voltage (pin 9) -0.3 +Vcc1 V
Vo(tune) output tuning voltage (pin 10) -0.3 +35 V
Vi(SW) input switching voltage (pin 11) -0.3 Vcc1 V
Vo(LOCK) lock output voltage (pin 12) -0.3 +Vcc1 V
Vi(SCL) serial clock input voltage (pin 13) -0.3 +6.0 V
Vi/o(SDA) serial data input/output voltage (pin 14) -0.3 +6.0 V
Io(SDA) serial data output current -0.3 +10 mA
Vi(CE) chip enable input voltage (pin 15) -0.3 +6.0 V
Vi(xtal) crystal oscillator input voltage (pin 16) -0.3 +Vcc1 V
Tstg storage temperature -40 +150
Tj maximum junction temperature - +150
tsc short-circuit time; every pin except pin 4 to pin 3 and every pin to pin 2; note 1 - 10 s



Description

The device TSA5527 is a single-chip PLL frequency synthesizer designed for TV and VCR tuning systems. The circuit consists of a divide-by-eight prescaler with its own preamplifier, a 15-bit programmable divider, a crystal oscillator and its programmable reference divider and a phase/frequency detector combined with a charge-pump which drives the tuning amplifier and the 33 V output. Four high-current PNP band switch buffers are provided for band switching. Two PNP buffers TSA5527 can be switched on simultaneously. The sum of the collector currents is limited to 50 mA.

Depending on the reference divider ratio (512, 640 or 1024), the phase comparator operates at 3.90625 kHz, 6.25 kHz or 7.8125 kHz using a 4 MHz crystal.




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