PE4302_15 PEREGRINE | Alldatasheet

Document overview

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Technical content

Features

  • Attenuation: 0.5 dB steps to 31.5 dB
  • Flexible parallel and serial programming interfaces
  • Unique power-up state selection
  • Positive CMOS control logic
  • High attenuation accuracy and linearity over temperature and frequency
  • Very low power consumption
  • Single-supply operation
  • 50 Ω impedance
  • Packaged in a 20 lead 4x4mm QFN Control Logic Interface Parallel Control Power-Up Control Serial Control RF Input RF Output Switched Attenuator Array

Table 1. Electrical Specifications @ +25°C, VDD = 3.0 V

  1. See Max input rating in Table 3 & Figures on Pages 2 to 4 for data across frequency.
  2. Note Absolute Maximum in Table 3.

Figure 2. Package Type

Table 2. Pin Descriptions must be grounded for proper device operation. 2: Latch Enable (LE) has an internal 100 kΩ resistor to VDD. disable internal negative voltage generator.

  1. Place a 10 kΩ resistor in series, as close to pin as possible to

Figure 14. Pin Configuration (Top View) 1 C16 Attenuation control bit, 16dB (Note 4). 3 Data Serial interface data input (Note 4). 4 Clock Serial interface clock input. 5 LE Latch Enable input (Note 2). 7 PUP1 Power-up selection bit, MSB. 8 PUP2 Power-up selection bit, LSB. 13 P/S Parallel/Serial mode select. 15 C8 Attenuation control bit, 8 dB. 16 C4 Attenuation control bit, 4 dB. 17 C2 Attenuation control bit, 2 dB. 19 C1 Attenuation control bit, 1 dB. 20 C0.5 Attenuation control bit, 0.5 dB. vices are immune to latch-up. The PE4302 has a maximum 25 kHz switching rate. dependent upon this condition. Table 3. Absolute Maximum Ratings Table 4. Operating Ranges mum for extended periods may reduce reliability.

attenuation state, as shown in Table 5. Characteristics), and switching speed (Table 1). Table 5. Truth Table brought LOW, data in the shift register is latched. Table 8 (Serial Interface AC Characteristics). present on the six parallel data inputs (C0.5 to C16). be specified as the power-up state. Table 6. Parallel PUP Truth Table C0.5-C16, and PUP1 and PUP2 are not active.

Figure 19. Package Drawing

0.10 C A B

0.20 REF

  1. Dimension applies to metallized terminal and is measured

between 0.25 and 0.30 from terminal tip.

  1. Coplanarity applies to the exposed heat sink slug as well as
  2. Dimensions are in millimeters.

Peregrine Semiconductor Corporation

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