SQ82906XDS-Products-Silergy Corp

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SQ82906XDS

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High Integrated Analog Front End with Current and Voltage Output DACs and Multi-channel ADC
    Part numberSQ82906XDS
    DescriptionHighly Integrated Analog Front End with Current and Voltage Output DACs and Multi-channel ADC
    VDD (V)2.85 to 3.63
    InterfaceSPI, I2C
    IDAC Channel(#)4
    IDAC Resolution (bit)12
    IDAC Range (mA)100,150,200,250
    VDAC Channel(#)12
    VDAC Resolution (bit)12
    VDAC Range (V)2.5,VDD
    ADC channel (#)16
    ADC Resolution (bit)12
    ADC Range2.5,VDD
    Operating temperature range(°C)-40~105°C
    PackageCSP3.55×3.44-56
    Ø12-Channel, 12bit VDAC (voltage-output DAC)
    •VDD: 2.85V – 3.63V
    •Voltage output: (0V to 2.5V) or (0V to VDD-0.2V)
    •Current output: -15mA to 35mA
    Ø4-Channel, 12bit IDAC (current-output DAC)
    •Maximum Current: 100/150/200/250mA
    •Low headroom: 150mV max over temp
    •Enable function (EN_IBIASx)
    •Support 145℃ OT shutdown function
    •PVDD Range: 1.5V to VDD
    ØMultichannel, 12bit, 1MSPS SAR ADC
    •Support 16 external channels (current/voltage inputs configurable)
    •Voltage input range: 0V to VDD
    •Current input range: -3mA to 3mA
    •PGA gain options: 1, 1.25, 2.5, 5, 7.5, 10, 15
    •Support both sink or source current measurement with on chip resistors, 1% accuracy over temp (w/ temp calibration)
    •Internal channels for monitoring Power/VDAC/IDAC/Temperature
    ØI2C/SPI Interface
    ØOver-temperature alarm function
    Ø56-Ball WLCSP, 3.55x3.44mm2, 0.4mm pitch

    The SQ82906 is a highly integrated analog front end (AFE) which includes four channel 12-bit current output digital-to-analog converters (IBIASs), twelve channel 12-bit voltage output DACs and a 12-bit 1MSPS analog-to-digital converter (ADC) for sixteen external voltage/current input channels and internal signal monitoring. And the comparator is integrated to monitor the received signal strength indicator (RSSI) and loss-of-signal (LOS).

    The SQ82906 IBIASs provide a configurable full-scale output range of 100/150/200/250mA to bias the laser diode and there are four EN_IBIASx pins which support fast shut down for each IBIAS. In addition, the SQ82906 has twelve 12-bit VDACs, which provides the range of 0V to 2.5V and 0V to VDRIVE-0.2V with 35mA source current capacity and 15mA sink current capacity. For the internal ADC part, it supports voltage measurement and both sink or source current measurement with on-chip resistor.

    Communication to the device is performed through a 4-wire SPI-compatible interface for up to 20MHz or 2-wire I2C interface for up to 1MHz. The SQ82906 low power, high integration, small size and wide temperature range are good for the SiPh control and monitor in optical modules.

    Technical Documentation