Sony CMD-J16 Block Diagram Audio, General Audio Indications, Headset Connector Headphone Jack

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IC 2

IC 2 is the platform of the A/D-D/A converter for the interfacing and processing of baseband I/Q signals and voice signals.

It includes:

the complete set of baseband functions to perform the interface and processing of voice signals,

interface for processing of baseband components as In Phase (I) and Quadrature (Q) signals which support single slot and multi slot mode,

associated auxiliary RF control features, supply voltage regulation,

battery charging control and switch ON/OFF system analysis.

Further, IC 2 includes also on chip voltage reference, under voltage detection and power -on reset circuits.

IC 2 interfaces with the digital baseband device through a set of digital interfaces dedicated to the main functions of IC 1:

1.A baseband serial port (BSP) and a voiceband serial port (VSP) to communicate with the DSP.

2.A micro- controller serial port (USP) to communicate with the micro contoller core of IC 1.

3.A time serial port (TSP) to communicate with the processing unit for real time control.

6.3 Block Diagram - Audio

IC 1

IC 2

6.3.1 General Audio Indications

Multiactor (Loudspeaker /Ringer Vibrator)

This device is a combined electrodynamic vibration exciter with an additional membrane to improve frequency response and enhance ringer level.

The system is tuned to the vibration frequency around 130 Hz.

Headset Connector (Headphone Jack)

The headset is connected directly to the circuit to the built in microphone and earpiece. The connector is a 4-pole jack with 2 switches.

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Contents CMD-J5/J16 ESD Handling precautions Table of Contents Multi-band Section General DescriptionsDCS Preferences GSM Radio Frequency Power LevelsSpeech Codec LanguagesBattery Safety Battery ChargingBattery Capacity Connector layout Accessory InterfaceJog Dial Basic Features of the CMD-J5/J16Section Operating Instructions Parts and ControlsVoicemail Key Side SwitchSecurity Codes Centre KeyMenu Overview Icon GlossaryDisassembly Section Disassembling / TestingDo not detach the shield case from the main board Cabinet LowerInterface to GSM-Tester CMD- J 5/J Battery Pack Test SIM Card Service Test ConnectorJigs & Tools Level Test Procedure with GSM Tester recommendationSoftware set-up Programming InstructionsRequirement Hardware set-up2 ∗ Save Personal Data in Mobile Get Data / Write Data − The default values areTransmitter Section DiagramsBlock Diagram Radio Frequency RF General RF IndicationsGeneral Baseband Indications Block Diagram BasebandMultiactor Loudspeaker /Ringer Vibrator Block Diagram AudioHeadset Connector Headphone Jack General Audio IndicationsSony Corporation Section Spare Parts and Accessories List

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.
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