BGMC1210

Overview

BGMC1210 Bias & Control Chips

The BGMC1210 is a bias and control IC for Power Amplifiers (PA). The device is optimized for Doherty PAs and biases up to 2 PAs with 4 DAC outputs per PA but can be used in any PA configuration. The  DACs have a resolution of 12 Bit and a current driving capability of 50 mA sourcing and 20 mA sinking.

The DACs are organized in two groups with independent supplies and can be operated with positive and negative supply voltages in order to bias LDMOS and GaN transistors.

In addition, the BGMC1210 offers integrated clamping switches for fast TDD operation of the PA and integrated ADCs to measure supply voltages and drain currents.

Summary of Features

  • 8 DACs with 12-bit resolution
  • 2 Current Sense ADCs and 1 Voltage ADCs
  • Vout range: -7…0 / 0…+7 V
  • Integrated temperature sensor
  • Control interface: I2C & I3C
  • Packaging: VQFN-32 (5x5 mm²)

Benefits

  • Bias & Control chip to bias Doherty Power Amplifiers of two Transmit (Tx) channels
  • Positive and negative output range for LDMOS and GaN PAs
  • Integrated clamping switches & buffers for fast TDD operation
  • Integrated 60V ADC for PA current and voltage measurements
  • Temperature sensor and fast I3C & I2C serial interfaces

Potential Applications

  • Base stations
  • Small cells
  • 5G massive MIMO
  • Distributed Antenna Systems (DAS)
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