M MediaTek MT7681 Datasheet Version: 1.0 Release date: 3 January 2015 Specifications are subject to change without notice. © 2015 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction of this information in whole or in part is strictly prohibited.
MediaTek MT7681 Datasheet Table of Contents 1 2 3 4 Introduction ................................................................................................................ 4 1.1 General Description ............................................................................................................................. 4 1.2 Features ................................................................................................................................................ 4 1.
MediaTek MT7681 Datasheet Lists of tables and figures Table 1 MT7681 pin descriptions ................................................................................................................. 8 Table 2 Strapping option for the MT7681 .................................................................................................. 8 Table 3 MT7681 ordering information .......................................................................................................
MediaTek MT7681 Datasheet 1 Introduction 1.1 General Description The MT7681 is a highly integrated Wi-Fi System on Chip (SoC), which supports IEEE802.11b/g/n single stream, GPIO and PWM for intelligent control and UART/SPI interfaces for device communication. The MT7681 integrates a power amplifier, low noise amplifier and RF switch to reduce the module size and simplify RF design in the final product. It also integrates a power management unit for a single 3.3V power source.
MediaTek MT7681 Datasheet 1.3 Applications The MT7681 is ideal for use in devices for these applications: • Home automation • Smart plugs • Lighting • Metering • Remote control • Consumer network devices 1.4 Block Diagram Figure 1 shows the block diagram of the MT7681. Figure 1 MT7681 block diagram © 2015 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MediaTek MT7681 Datasheet 2 Product Descriptions This section provides details of the MT7681, including: • Pin layout • Pin descriptions • Strapping options • Package information • Ordering information • Top markings 2.1 Pin Layout Figure 2 shows a top view of the pin layout for the MT7681.
MediaTek MT7681 Datasheet 2.2 Pin Descriptions Table 1 provides descriptions of the pins on the MT7681.
MediaTek MT7681 Datasheet QFN40 Pin Name Pin description Default PU/PD I/O 3, 6 RF_V33A RF 3.3V power supply N/A Input 1, 35, 38, 39 RF_LDO RF power supply N/A Input 34 PLL_LDO PLL power supply N/A Input E-PAD DVSS Digital ground N/A Supply domain Table 1 MT7681 pin descriptions 2.3 Strapping option Table 2 shows the strapping options for the MT7681.
MediaTek MT7681 Datasheet 2.4 Package Information This section provides details of the QNF packaging offered on the MT7681, including the package drawings in Figure 3 and the drawing annotations in Figure 4. Figure 3 MT7681 package outline drawing © 2015 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MediaTek MT7681 Datasheet Figure 4 MT7681 package outline drawing annotations © 2015 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MediaTek MT7681 Datasheet 2.5 Ordering Information Table 3 shows the ordering information for the MT7681. Part number MT7681N Package 5mm x 5mm x 0.8 mm 40-QFN Operational temperature range -10 to 70°C Table 3 MT7681 ordering information 2.6 Top Marking Information Figure 5 shows the top marking displayed on a MT7681 chip. Figure 5 Top marking on an MT7681 chip © 2015 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc.
MediaTek MT7681 Datasheet 3 Electrical And Thermal Characteristics This section provides details of the electrical and thermal characteristics of the MT7681, including: • Maximum and minimum ratings • Recommended operating ranges • DC characteristics • Thermal characteristics • Current consumption 3.1 Maximum And Minimum Ratings Table 4 shows the maximum and minimum ratings for the MT7681. Symbol Parameters Minimum rating Maximum rating Unit VDD33 3.3V Supply Voltage -0.3 3.
MediaTek MT7681 Datasheet 3.3 DC Characteristics Table 6 describes the DC characteristics of the MT7681. Symbol Parameter Conditions Minimum Maximum Unit VIL Input Low Voltage LVTTL -0.28 0.6 V 2.0 3.63 V 0.68 1.36 V 1.36 1.7 V VIH Input High Voltage VT- Schmitt Trigger Negative Transition Threshold Voltage VT+ Schmitt Trigger Positive Transition Threshold Voltage VOL Output Low Voltage |IOL| = 1.6~14 mA -0.28 0.4 V VOH Output High Voltage |IOH| = 1.6~14 mA 2.4 VDD33+0.
MediaTek MT7681 Datasheet 3.5 Current Consumption Table 8 shows the current consumption for the Wi-Fi features of the MT7681. Description Performance Typical Unit Sleep mode 1.1 mA RX Active, HT40, MCS7 151 mA RX Power saving, DTIM=1 15 mA RX Listen 6 mA TX HT40, MCS7 @15dBm 210 mA TX CCK, 11Mbps @19dBm 242 mA Note: All results measured at the antenna port with VDD33 at 3.3V Table 8 WLAN 2.4GHz current consumption © 2015 MediaTek Inc.
MediaTek MT7681 Datasheet 4 Cautions ESD CAUTION MT7681 is an ESD (electrostatic discharge) sensitive device and may be damaged by ESD or spike voltage. Although MT7681 has built-in ESD protection circuitry, please handle with care to avoid permanent damage or performance degradation. © 2015 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
