Sigma designs ZM5304 Datasheet

DATASHEET: ZM5304

FCC ID

TBD

IC ID

TBD

Features

Complete Z-Wave stack available over

Fully Integrated crystal, EEPROM, SAW

Supply voltage range from 2.3V-3.6V for

Receiver sensitivity with SAW filter down

Transmit power with SAW filter up to

Supports all Z-Wave sub-1 GHz frequency

Supports multi-channel frequency agility

Z-Wave serial API accessed over UART or

FULLY INTEGRATED Z-WAVE® WIRELESS MODEM WITH ON-BOARD ANTENNA

The Sigma Designs ZM5304 Modem is a fully integrated Z-Wave modem module in a small 27mmx15.2mmx5.5mm form factor. It is an ideal solution for home control applications such as access control, appliance control, AV control, building automation, energy management, lighting, security, and sensor networks in the “Internet of Things”.

A baseband controller, sub-1 GHz radio transceiver, crystal, decoupling, SAW filter, matching, and the antenna is included to provide a complete Z-Wave solution to an application executing in an external host microcontroller. The ZM5304 Modem is certified with the FCC modular approval, ready to be used in any product without additional testing and license costs.

The ZM5304 Modem is based on an 8-bit 8051 CPU core, which is optimized to handle the data and link management requirements of a Z-Wave node. The UART or USB interface can be used to access the Z-Wave stack available in the on-chip Flash memory, or to easily upgrade the modem firmware.



UART or USB

 32kB of byte addressable NVM memory



filter, matching circuit, and antenna



optional battery operation

 No external components required  FCC modular approval  CE self-certified  ITU G.9959 compliant

Radio Transceiver



to -103dBm



+2dBm

 Z-Wave 9.6/40/100kbps data rates



bands (865.2-926.3 MHz)



and listen before talk

 Regulatory Compliance

ACMA: AS/NZS 4268 CE: EN 300 220/489 FCC: CFR 47 Part 15 Modular Approval IC: RSS-GEN/210 MIC: ARIB STD-T108

Modem

 UART speed up to 230.4kbps  USB 2.0 full speed



USB

 Firmware upgradeable via UART or USB  TX mode current typ. 40mA @ +2dBm  RX mode current typ. 32mA  Normal mode current typ. 15mA  Sleep mode current typ. 2µA  Less than 1ms cold start-up time  Power-On-Reset / Brown-out Detector

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Datasheet: ZM5304

1 CONTENT

2 OVERVIEW .......................................................................................................................................................................... 4

2.1 PERIPHERALS ........................................................................................................................................................................... 4

2.1.1 Advanced Encryption Standard Security Processor ..................................................................................................... 4

2.1.2 Analog-to-Digital Converter ........................................................................................................................................ 5

2.1.3 Crystal Driver and System Clock .................................................................................................................................. 5

2.1.4 Interrupt Controller ..................................................................................................................................................... 5

2.1.5 Power-On-Reset / Brown-Out Detector ....................................................................................................................... 6

2.1.6 Reset Controller ........................................................................................................................................................... 6

2.1.7 Universal Asynchronous Receiver / Transmitter ......................................................................................................... 6

2.1.8 Universal Serial Bus ..................................................................................................................................................... 6

2.1.9 Watchdog .................................................................................................................................................................... 7

2.1.10 Wireless Transceiver.................................................................................................................................................... 7

2.2 MEMORY MAP ........................................................................................................................................................................ 7

2.3 MODULE PROGRAMMING .......................................................................................................................................................... 8

2.3.1 Entering In-System Programming Mode ..................................................................................................................... 8

2.3.2 Entering Auto Programming Mode ............................................................................................................................. 8

2.4 POWER SUPPLY REGULATOR ...................................................................................................................................................... 8

3 TYPICAL APPLICATION ........................................................................................................................................................ 9

4 PAD CONFIGURATION ....................................................................................................................................................... 10

4.1 PAD FUNCTIONALITY ............................................................................................................................................................... 10

5 ELECTRICAL CHARACTERISTICS .......................................................................................................................................... 12

5.1 TEST CONDITIONS .................................................................................................................................................................. 12

5.1.1 Typical Values ............................................................................................................................................................ 12

5.1.2 Minimum and Maximum Values ............................................................................................................................... 12

5.2 ABSOLUTE MAXIMUM RATINGS ................................................................................................................................................ 13

5.3 GENERAL OPERATING RATINGS ................................................................................................................................................. 13

5.4 CURRENT CONSUMPTION ........................................................................................................................................................ 13

5.5 SYSTEM TIMING ..................................................................................................................................................................... 14

5.6 NON-VOLATILE MEMORY RELIABILITY ........................................................................................................................................ 15

5.7 ANALOG-TO-DIGITAL CONVERTER ............................................................................................................................................. 16

5.8 DC CHARACTERISTICS ............................................................................................................................................................. 16

5.9 RF CHARACTERISTICS .............................................................................................................................................................. 17

5.9.1 Transmitter................................................................................................................................................................ 17

5.9.2 Receiver ..................................................................................................................................................................... 18

5.9.3 Antenna ..................................................................................................................................................................... 21

5.9.4 Regulatory Compliance ............................................................................................................................................. 22

6 Z-WAVE FREQUENCIES ...................................................................................................................................................... 23

7 MODULE INFORMATION ................................................................................................................................................... 24

7.1 MODULE MARKING ................................................................................................................................................................ 24

7.2 MODULE DIMENSIONS ............................................................................................................................................................ 24

8 PCB MOUNTING AND SOLDERING..................................................................................................................................... 25

8.1 RECOMMENDED PCB MOUNTING PATTERN ................................................................................................................................ 25

8.2 RECOMMENDED PLACEMENT ON PCB ....................................................................................................................................... 26

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Datasheet: ZM5304

8.3 SOLDERING INFORMATION ....................................................................................................................................................... 26

9 ORDERING INFORMATION ................................................................................................................................................ 28

9.1 TAPE AND REEL INFORMATION ................................................................................................................................................. 29

10 REVISION HISTORY ........................................................................................................................................................ 31

11 REFERENCES .................................................................................................................................................................. 32

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Datasheet: ZM5304

EEPROM

Memory

ZM5304

TXD

USB_DP

RESET_N

USB_DM

RXD

VDD

SPI

Voltage

Regulator

UART

USB

Sub-1 GHz

Radio

Transceiver

SD3503

SAW Filter &

Matching

Helical

Antenna

32MHz

XTAL

8051 CPU

Decoupling

Flash

Memory

AES

ADC

POR / BOD

HOST

Application

UART / USB

ZM5304

Z-Wave® Serial API

Z-Wave® Protocol Stack

Network Layer

MAC Layer

PHY Layer

ITU G.9959

2 OVE R VI EW

The ZM5304 Modem is a fully integrated module with an on-board antenna that allows the establishment of a Z-Wave network with minimum risk. The SD3503 modem chip is used with an external NVM (EEPROM), 32MHz crystal, power supply decoupling, SAW filter, matching circuit, and a helical antenna. Figure 2.1 shows the main blocks of the ZM5304 Modem, while Figure 2.2 illustrates the firmware stack of an example application.

2.1 PERIPHERALS

Figure 2.1: Functional block diagram

Figure 2.2: Firmware stack

2.1.1 ADVANCE D ENCRYPTION STANDARD SE CURITY PROCESSOR

The Z-Wave protocol specifies the use of Advanced Encryption Standard (AES) 128-bit block encryption for secure applications. The built-in Security Processor is a hardware accelerator that encrypts and decrypts data at a rate of 1 byte per 1.5µs. It encodes

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Datasheet: ZM5304

Source

Description

VIN

The sampling input voltage

VBG

REF+

The positive node of the reference voltage

VBG, VDD

REF-

The negative node of the reference voltage

GND

Vector

Interrupt Name

Priority

Resources served

UART

General Purpose Timer

ADC 9 Battery monitor, ADC low and high monitor

RF DMA

NMI 0 Non Maskable Interrupt for debugger and more

the frame payload and the message authentication code to ensure privacy and authenticity of messages. The processor supports Output FeedBack (OFB), Cipher-Block Chaining (CBC), and Electronic CodeBook (ECB) modes to target variable length messages. Payload data is streamed in OFB mode, and authentication data is processed in CBC mode as required by the Z-Wave protocol. The processor implements two efficient access methods: Direct Memory Access (DMA) and streaming through Special Function Register (SFR) ports. The processor functionality is exposed via the Z-Wave API for application use.

2.1.2 ANALO G -TO-DIGITAL CONVERTER

The Analog-to-Digital Converter (ADC) is capable of sampling an input voltage source and returns an 8 or 12 bit unsigned representation of the input scaled relative to the selected reference voltage, as described by the formula below.









The ADC is capable of operating rail to rail, while the following input configurations apply (VBG = built-in Band-gap 1.25V, VDD = supply voltage):

Table 2.1: ADC voltage source configuration options







 



 



  



If the sampling input voltage crosses a predefined lower or upper voltage threshold, an interrupt is triggered. Setting VIN = VBG and V

= VDD implements a battery monitor.

RFE+

2.1.3 CRYSTAL DRIVER AND SYSTEM CL OCK

The system clock and RF frequencies are derived from an external 32MHz crystal (XTAL) which is factory trimmed to guarantee initial frequency precision. The temperature and 5 years aging margin for the 32MHz crystal is 15 ppm.

2.1.4 INT ERRUPT CONTROLLER

The interrupts are shared between the user application and the Z-Wave protocol. Priorities for the interrupts are pre-assigned by the Z-Wave protocol implementation. Therefore, constraints for the user application apply.

Table 2.2: Interrupt vector table

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Datasheet: ZM5304

Reset Cause

Description

GPIO state

Maskable

POR

Reset request generated by Power-OnReset hardware

High impedance with pull-up

BOR

Reset request generated by Brown-OutReset hardware

High impedance with pull-up

RESET_N

Reset request generated by the RESET_N pin being de-asserted

High impedance with pull-up

WATCHDOG

Reset request generated by the WATCHDOG Timer timing out

High impedance with pull-up

YES

START

BIT

D0 D1 D2 D3 D4 D5 D6 D7

STOP

BIT

2.1.5 POWER-ON-RESET / BROWN-OUT DETE C T OR

When a cold start-up occurs, an internal Power-On-Reset (POR) circuit ensures that code execution does not begin unless the supply voltage is sufficient. After which, an internal Brown-Out Detector (BOD) circuit guarantees that faulty code execution does not occur by entering the reset state, if the supply voltage drops below the minimum operating level. These guarantees apply equally in both the active and sleep modes.

2.1.6 RESET CONTROLLER

After a reset event, the MCU is reinitialized in less than 1ms. This delay is mostly due to the charge time of the internal and external supply capacitances, and bringing the XTAL clock into a stable oscillation. Multiple events may cause a reset. Therefore, the actual cause is latched by hardware and may be retrieved via software when the system resumes operation. Some reset methods deliberately leave the state of GPIO pins unchanged, while other GPIO pins are set to high impedance with an internal weak pull-up.

Table 2.3: Supported reset methods

2.1.7 UNIVER SAL ASYNCHRONOUS RECEI VE R / TRANSMITTER

The Universal Asynchronous Receiver / Transmitter (UART) is a hardware block operating independently of the 8051 CPU. It offers full-duplex data exchange, up to 230.4kbps, with an external host microcontroller requiring an industry standard NRZ asynchronous serial data format. The UART interface is available over EP4 and EP5 (refer section 4). A data byte is shifted as a start bit, 8 data bits (lsb first), and a stop bit, respectively, with no parity and hardware handshaking. Figure 2.3 shows the waveform of a single serial byte. The UART is compliant with RS-232 when an external level converter is used.

Figure 2.3: UART waveform

2.1.8 UNIVER SAL SERIAL BUS

A Universal Serial Bus (USB) 2.0 full speed interface is available over EP6 and EP7 (refer section 4). The Communication Device Class / Abstract Control Mode (CDC/ACM) provides an emulated virtual COM port to a host. This makes it easy to migrate from legacy RS-232 communication to USB communication. Figure 2.4 shows the two termination resistors necessary to maintain signal integrity of the differential pair and a single pull-up resistor on USB_DP, which indicates a full speed device to the host.

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Datasheet: ZM5304

ZM5304

USB_DP USB_DM

Host

EEPROM Memory

(Byte addressable)

Protocol Data

(Reserved for Modem)

Application Data

(Available to Host)

16kB (min)

Offset

Figure 2.4: USB interface

2.1.9 WATCHDOG

The watchdog helps prevents the CPU from entering a deadlock state. A timer that is enabled by default achieves this by triggering a reset event in case it overflows. The timer overflows in 1 second, therefore it is essential that the software clear the timer periodically. The watchdog is disabled when the chip is in power down mode, and automatically restarts with a cleared timer when waking up to the active mode.

2.1.10 WIRELESS TRANSCEIVER

The wireless transceiver is a sub-1 GHz ISM narrowband FSK radio, a modem, and a baseband controller. This architecture provides an all-digital direct synthesis transmitter and a low IF digital receiver. The Z-Wave protocol currently utilizes 2-key FSK/GFSK modulation schemes at 9.6/40/100 kbps data rates throughout a span of carrier frequencies from 865.2 to 926.3MHz.

The output power of the transmitter is configurable in the range -26dBm to +2dBm (VDD = 2.3 to 3.6V, TA = -10 to +85°C).

2.2 MEMORY MAP

An application executing on an external host microcontroller can access a minimum of 16kB allocated on the higher address space of the integrated EEPROM via the serial API. As shown in Figure 2.5, the protocol data is stored in the lower address space. A serial API function returns the size of the application data space. [1][2]

Figure 2.5: EEPROM memory map

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Datasheet: ZM5304

2.3 MODULE PROGRAMMING

The firmware of the ZM5304 Modem can be upgraded through the UART or USB interface. [3] In-System Programming is the default mode delivered from the factory.

2.3.1 ENTERING IN-SYSTEM PROGRAMM ING MODE

The module can be placed into the UART In-System Programming (ISP) mode by asserting the active low RESET_N signal for

4.2ms. The programming unit of the module then waits for the “Interface Enable” serial command before activating the ISP

mode over the UART.

2.3.2 ENTERING AUTO PROGRAMMING M O DE

Alternatively, the module can be placed into the Auto Programming Mode (APM) by calling a serial API function. The programming unit of the module will enter APM immediately after a hardware or software reset. Once the module is in APM, the firmware can be written to the internal flash using either the UART or USB interface.

2.4 POWER SUPPLY REGULATOR

While the supply to the digital I/O circuits is unregulated, on-chip low-dropout regulators derive all the 1.5 V and 2.5 V internal supplies required by the Micro-Controller Unit (MCU) core logic, non-volatile data registers, flash, and the analogue circuitry.

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Datasheet: ZM5304

ZM5304Host

RESET_N

RXD

TXD

GPIO

TXD

RXD

3V3

VDD

GND

ZM5304Host

USB_DP

USB_DM

RESET_N

USB_DP

USB_DM

GPIO

3V3

3V3 3V3

1.5kΩ±5%

22Ω±5%

VDD

GND

3 TYPICAL APPLICATION

An illustration of two application examples using the ZM5304 Modem implementation follows. The host application located on an external microcontroller accesses the Z-Wave stack via the serial API. Figure 3.1 depicts the scenario when the UART is used as the primary interface to the ZM5304 Modem, while Figure 3.2 shows the scenario when the USB1 is used. It is strongly recommended that the power supply is decoupled sufficiently, and a pull-up resistor placed on the RESET_N signal if the host GPIO is unable to drive it.

Figure 3.1: Example of a host microcontroller based application using the UART

Figure 3.2: Example of a host microcontroller based application using the USB

Firmware upgrades can be performed only when the ZM5304 Modem is placed in APM.

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Datasheet: ZM5304

48474645444342414039383736

11121314151617181920212223

B O A R D

C U T O U T

GND

VDD

GND

USB_DP

USB_DM

RXD

TXD

RESET_N

GND

Plane

Copper

Free

GND

Pad Name

Pad Location

Type2

Function

VDD 9 S

Module power supply.

GND

1, 8, 10, 11, 24, 25, 28, 30, 34, 35, 48

Ground. Must be connected to the ground plane.

3, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 29, 31, 32, 33, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47

Placement pads for mechanical stability. Leave unconnected.

Pad Name

Pad Location

Type

Function

RESET_N 2 I

Active low signal that places the module in a reset state.

4 PAD CONFIGURATION

The layout of the Exposed Pads (EP) on the ZM5304 Modem is shown in Figure 4.1.

4.1 PAD FUNCTIONALITY

Figure 4.1: Pad layout (top view)

Table 4.1: Power, ground, and no connect signals

Table 4.2: Module control signals

I = Input, O = Output, D+ = Differential Plus, D- = Differential Minus, S = Supply

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Datasheet: ZM5304

Pad Name

Pad

Location

Type

Function in Reset State

Function in Active State

RXD 5 I

Waits for the “Interface Enable” serial command after 4.2ms. Enters ISP mode after command is received from the host.

Receive data from host serial port.

TXD 4 O

Serial data transmit when in ISP mode, high impedance otherwise.

Transmit data to host serial port.

Pad Name

Pad

Location

Type

Function in Reset State

Function in Active State

USB_DP

D+

USB 2.0 full speed APM when serial API function is used before entering the reset state.

USB 2.0 full speed.

USB_DM

D-

Table 4.3: UART interface signals

Table 4.4: USB interface signals

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