Sony CMD-J16 specifications Block Diagram Baseband, General Baseband Indications

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6.2 Block Diagram - Baseband

MCP-I/F

BL-I/F

FLASH/SRAM

KEY-I/F

LCD-I/F

LCD

IC 1

I/O CONNECTOR

1DGND

2

CHG

 

 

 

MODEM -I/F

JOG-I/F

 

 

3

 

 

 

 

GEN I/O

 

 

 

 

4POWER OUT

5

RX (IN)

TIME

 

 

6

TX (OUT)

PROCCESSING

 

AUDIO

 

 

UNIT

 

7

ACC ID

 

AMP

 

 

 

 

 

8

RTS

RTC

32kHz

 

9

CTS

RF-I/F

 

CLK-

10

AUDIO OUT

 

CTRL

 

SIM

 

 

11

AUDIO IN

 

 

12

AGND

Interface

IC 2

 

 

 

 

I/F

 

Battery

 

IC 1

 

Connector

Power / CHG

I/F

 

KEY-LED

LCD-LED

KEY-MATRIX

KEYBOARD

JOG

RINGER

HEADSET

AUDIO &

REMOTE

MIC

FLEX-BOARD

SLIDE-SW (REC/LOCK or Manner)

JOG DIAL

Multiactor

*Ringer

*Vibrator *Loud- Speaker

HEADPHONE-JACK

Management

LI-ION

 

 

 

 

BATTERY

 

 

SIM I/F

 

AUDIO

 

 

 

 

 

 

 

 

I/F

 

 

 

 

RTC / ID

HFK I/F

IC 2

 

SIM

 

SIM LEVEL

 

CTRL 3V/5V

Connector

 

 

 

A/D CONV

RF I/F

A/D, D/A

SIM CARD

RF TCXO

BLOCK

AUDIO

EAR

AMP

RECEIVER

 

MIC

6.2.1 General Baseband Indications

The Baseband part consists of two chips, a digital chip IC 1 and an analog one IC 2. The CMD-J5/J16 external memory size is 32 Mbits Flash ROM and 4 Mbit SRAM.

IC 1

The application of IC 1 is the management of the GSM baseband processes through the GSM layer 1, 2 and 3 protocols as described in the ETSI standard with a specific attention to the power consumption in both GSM dedicated and idle modes.

It is a chip that implements:

the digital baseband processes of the CMD-J5/J16 and combines a Digital Signal Processing (DSP) with its program and data memories,

a Micro-Controller core with emulation facilities and an internal RAM memory, a clock squarer cell,

several compiled ports and equivalent CMOS gates.

Full support for Full-Rate, Enhanced Full-Rate and Half-Rate speech coding is given.

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Contents CMD-J5/J16 ESD Handling precautions Table of Contents Section General Descriptions Multi-bandDCS Languages Radio Frequency Power LevelsSpeech Codec Preferences GSMBattery Charging Battery SafetyBattery Capacity Accessory Interface Connector layoutParts and Controls Basic Features of the CMD-J5/J16Section Operating Instructions Jog DialCentre Key Side SwitchSecurity Codes Voicemail KeyIcon Glossary Menu OverviewSection Disassembling / Testing DisassemblyCabinet Lower Do not detach the shield case from the main boardCMD- J 5/J Battery Pack Test SIM Card Service Test Connector Interface to GSM-TesterLevel Test Procedure with GSM Tester recommendation Jigs & ToolsHardware set-up Programming InstructionsRequirement Software set-up− The default values are 2 ∗ Save Personal Data in Mobile Get Data / Write DataGeneral RF Indications Section DiagramsBlock Diagram Radio Frequency RF TransmitterBlock Diagram Baseband General Baseband IndicationsGeneral Audio Indications Block Diagram AudioHeadset Connector Headphone Jack Multiactor Loudspeaker /Ringer VibratorSection Spare Parts and Accessories List Sony Corporation

CMD-J16 specifications

The Sony CMD-J16, released in the late 1990s, exemplifies the innovative spirit of mobile communication technology during that era. This compact mobile phone showcased advanced features for its time, appealing to tech enthusiasts and casual users alike.

One of the standout characteristics of the CMD-J16 is its sleek design. Weighing in at just 113 grams and measuring 135 x 52 x 21 mm, this phone was incredibly portable. The device sported a monochrome display, which supported a resolution of 101 x 32 pixels, offering a simple yet functional interface for users to navigate. Its intuitive button layout made dialing and text input a straightforward process.

In terms of connectivity, the CMD-J16 operated on GSM technology, which was becoming increasingly popular worldwide. This allowed users to enjoy reliable voice calls and text messaging services. The device supported dual-band GSM, which provided increased coverage and versatility for international travelers.

The phone was equipped with several features that made it user-friendly. One such feature was the integrated phonebook, capable of storing up to 250 contacts. Each contact could hold multiple phone numbers and even a fax number, making it easy for users to manage their communication needs. The CMD-J16 also supported SMS messaging, allowing users to send and receive text messages seamlessly.

Another notable aspect of the CMD-J16 is its long-lasting battery life. The phone housed a NiMH battery, which offered up to 100 hours of standby time and up to 4 hours of talk time, ensuring users could stay connected for extended periods without frequent recharging.

The phone also came with a range of personalization options. Users could select from various ringtones, including polyphonic options, to customize their experience. The device allowed for basic games, adding a touch of entertainment during idle moments.

In summary, the Sony CMD-J16 was a remarkable mobile phone that combined practicality with style. Its compact design, user-friendly features, and reliable performance made it a popular choice among consumers in the late 90s. While it may now be considered a relic in the rapidly evolving world of mobile technology, the CMD-J16 remains a testament to Sony’s commitment to innovation and quality in the telecommunications landscape.