Specifications

COMPANY CONFIDENTIAL
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understood by considering major functional blocks individually. Therefore, the PMD9645
document set is organized by the following device functionality:
  Input power management
  Output power management
  General housekeeping
  User interfaces
  IC interfaces
  Configurable pins—either multipurpose pins (MPPs) or
general-purpose
inputs/outputs (GPIOs)—that can be configured to function within some of the other
categories

2.4 Antenna Design
2.4.1 Antenna specification
T77W968 also provides connectivity for off board antennas. The antennas and their
connection interface for this device satisfy the requirements specified in the PCI Express M.2
Specification Revision Version 1.1 standard. The antenna elements are typically integrated
into the notebook/ultrabook /tablet and connected to T77W968 module via flexible RF
coaxial cables. T77W968 provides two RF connectors (MHF type), one for the primary
transmitter/receiver port, one for the diversity receiver and GNSS.
To ensure stable RF performance, customer must assemble adequate antenna according to
the antenna specification.
Table 2-1 Main antenna specifications
Parameter Min. Typ. Max. Units Notes
Cable loss / / 0.5 dB Maximum loss to antenna
Impedance / 50 / Ohm Antenna load impedance
VSWR / / 3:1 / Maximum allowed VSWR of antenna
Note:
1. Main antenna peak gain limit as 2.5dBi for frequency <1.5GHz and 4dBi for
frequency >1.5GHz of module level certification
2. For Japan regional peak gain should be limited as 2.5dBi for frequency <1.5GHz and
3dBi for frequency >1.5GHz
3. For Band 30 peak gain limit as 3dBi (Meet FCC requirement)
T77W968C9
T77W968C9
T77W968C9