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SKY66430-11

5G Massive IoT System-in-Package

The SKY66430-11 is a multi-band multi-chip System-in- Package (SiP) supporting 5G Massive IoT (LTE-M/NB-IoT) platforms. The SiP integrates the entire RF front end, transceiver, power management, memory, and baseband modem for an LTE multi-band radio operating in the 698 to 2200 MHz frequency range. NOR flash, crystals, and a few passives external to the package complete the SiP implementation.

Front-End Section

The front-end section includes Rx low-pass filters, broadband PA with bias controller, Tx low-pass harmonic filter, and antenna switch.

Rx Section

Receive low-pass filters are integrated into the SIP along with the necessary matching to yield a 50 Ω single-ended impedance for the antenna. The filters provide a high level of rejection to out-of-band interferers, protecting the transceiver from high blocking signal levels and guaranteeing 3GPP LTE blocking test conformance. The Rx low-pass filters are cascaded with the low throw count switch to establish a lower insertion loss and noise figure than conventional LTE receivers.

Tx Section

The PA load-line is optimized for high efficiency while simultaneously meeting 3GPP ACLR and emissions mask specifications with LTE up to 6 RB. An integrated LPF is implemented to reject the PA and transceiver harmonics while at the same time minimizing any post PA loss for an optimized transmit current consumption. Out-of-band emissions performance is emphasized by the design to be 3GPP-compliant for low-band B5, B8, B12, B13, B14, B17, B18, B19, B20, B26, B28, B85 and mid-band B1/B2/B3/B4/B25/B66..

Transceiver Section

A direct-conversion RF solution using low power technology has the following functional characteristics:
  • Direct conversion in the Tx and Rx paths
  • On-chip Fractional-N frequency synthesizers
  • On-chip anti-alias filters
  • On-chip AGC circuit
  • On-chip reconstruction filters
  • On-chip calibration including VCO and DC offset correction in the Rx paths
  • Rx and Tx gain and phase correction loops between the RF and baseband
  • Software control for synthesizer, Tx/Rx, adjustment, and gain control
  • External clock reference of 38.4 MHz

Baseband Modem Section

  • DL processing block, handling LTE downlink physical layer (Rx)
  • UL processing block, handling LTE uplink physical layer (Tx)
  • Synchronization processing block, handling frequency search and synchronization to LTE network
  • Optimized for Cat-M1 channels defined in 3GPP Releases 13 and 14, upgradable to Release 15
  • Three high-speed UARTs with hardware flow control
  • One I2C master up to 3.4 Mbps
  • One SPI master and slave up to 13 MHz
  • Muxed GPIOs interruptible, with support of pulse counter and PWM functionality
  • Two UICC interfaces compliant with ETSI TS 102 221 specification, including SIM card removal detection and support for 1.8 V and 3 V voltage levels
  • Secured JTAG, with possibility of enabling or disabling the interface by hardware or secured software

Features

    • Complete BB to RF solution in a single package:
      • Integrated baseband, transceiver, RF front end, RAM memory, and power management
      • 8.8 mm x 10.8 mm x 0.95mm BGA package, 0.5mm pitch, Device weight: 229 mg
    • Compliant to 3GPP Rel-14 LTE Advanced Pro specifications, including VoLTE support
    • Upgradable to 3GPP Rel-15
    • Optimized for LTE half-duplex operation (HD-FDD) for LTE-M/NB-IoT
    • Global frequency band support:
      • Low-band: B5, B8, B12, B13, B14, B17, B18, B19, B20,B26, B28, B85
      • Mid-band: B1, B2, B3, B4, B25, B66
    • Two AUX ports to support additional bands
    • Extended DRX and PSM features for long sleep duration cases
    • Extremely low leakage internal PMU that enables operability for 10 years
    • Smart PA biasing scheme to maximize efficiencies during low-output power operation
    • Throughput:
      • LTE-M (1.4 MHz bandwidth) up to 300 kbps DL, 375 kbps UL
      • NB-IoT (200 kHz bandwidth):
        • NB1: 27.2 kbps DL, 62.5 kbps UL
        • NB2: 120 kbps DL, 170 kbps UL
    • Single 3.1 V to 5.5 V supply operation
    • Operating temperature range: -40 °C to +85 °C
    • Skyworks conformal shielding
    • Lead (Pb)-free and RoHS-compliant

Images & Diagrams

Specifications

    • Frequency (MHz)
    • 700-2200
    • Description
    • 5G Massive IoT System-in-Package
    • Typical Linear LTE Power
      (dBm)
    • +23
    • Supply Voltage (V)
    • 3.1-5.5
    • Package (mm)
    • 8.8 x 10.8 x 0.95

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