TSA5522 1.4 GHz I²C-bus Controlled Synthesizer

The device 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 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.The device CAN be controlled in accordance with the IC-bus format or the 3-wire bus format depending on the voltage applied to the SW input (see Table 2). In the 3-wire bus mode (SW = HIGH) pin 12 is the LOCK output. The lock output is LOW when the PLL loop is locked. In the IC-bus mode (SW = LOW) the LOCK detector bit FL is set to Logic 1 when the loop is locked and is read on the SDA line (status byte) during a read operation. The ADC input is available on pin 12 for AFC control in the IC-bus mode only. The ADC code is read during a read operation on the IC-bus. In the test mode pin 12 is used as a test output for fref and 1/2 fdiv in the IC-bus mode and the 3-wire bus mode. When the Automatic charge-pump current Switch mode is activated, depending on the device given in Table 6, and when the loop is phase-locked, the charge-pump current value is automatically switched to LOW.This action is taken to improve the carrier-to-noise ratio. The status of this feature CAN be read in the ACPS flag during a read operation on the IC-bus .IC-bus format (SW = LOW)Five serial bytes (including address byte) are required to address the device, select the VCO frequency, program the four PNP band Switch Buffers set the charge-pump current and the reference divider ratio.The device has three independent IC-bus addresses which CAN be selected by applying a specific voltage on the CE input . The general address C2 is always valid. When the IC-bus format is fully used, TSA5526 and TSA5527 are equal.3-wire bus format (SW = VCC1 or open-circuit)Data is transmitted to the device during a HIGH level on the CE input (enable line pin 15). The device is compatible with 18-bit and 19-bit data formats. The first four bits are used to program the PNP band Switch Buffers and the remaining bits are used to control the programmable divider. A 27-bit data format may also be used to set the charge-pump current, the reference divider ratio and for test purposes. The differences between TSA5526 and TSA5527 are given in Table 1.When the 27-bit format is used, the TSA5526 and TSA5527 are equal and the reference divider is controlled by the RSA and RSB bits. Table 1 Differences between TSA5526 and TSA5527TYPE NUMBER
By NXP Semiconductors
TSA5522 's PackagesTSA5522 's pdf datasheet

TSA5522 Pinout, Pinouts
TSA5522 pinout,Pin out
This is one package pinout of TSA5522,If you need more pinouts please download TSA5522's pdf datasheet.

TSA5522 Application circuits
TSA5522 circuits
This is one application circuit of TSA5522,If you need more circuits,please download TSA5522's pdf datasheet.

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