Si4734/35-B20

1. Electrical Specifications

Table 1. Recommended Operating Conditions

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

 

 

 

 

 

 

 

Supply Voltage

VDD

 

2.7

5.5

V

Interface Supply Voltage

VIO

 

1.5

3.6

V

Power Supply Powerup Rise Time

VDDRISE

 

10

µs

Interface Power Supply Powerup Rise Time

VIORISE

 

10

µs

Ambient Temperature

TA

 

–20

25

85

°C

Note: All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.

Typical values apply at VDD = 3.3 V and 25 °C unless otherwise stated. Parameters are tested in production unless

otherwise stated.

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. Absolute Maximum Ratings1,2

Parameter

Symbol

Value

Unit

 

 

 

 

 

Supply Voltage

VDD

–0.5 to

5.8

V

Interface Supply Voltage

VIO

–0.5 to

3.9

V

Input Current3

IIN

10

 

mA

Input Voltage3

VIN

–0.3 to (VIO + 0.3)

V

Operating Temperature

TOP

–40 to

95

°C

Storage Temperature

TSTG

–55 to 150

°C

RF Input Level4

 

0.4

 

VpK

Notes:

1.Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure beyond recommended operating conditions for extended periods may affect device reliability.

2.The Si4734/35 devices are high-performance RF integrated circuits with certain pins having an ESD rating of < 2 kV HBM. Handling and assembly of these devices should only be done at ESD-protected workstations.

3.For input pins SCLK, SEN, SDIO, RST, RCLK, DCLK, DFS, GPO1, GPO2, and GPO3.

4.At RF input pins, FMI and AMI.

4

Rev. 1.0

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Silicon Laboratories SI4734/35-B20 manual Electrical Specifications, Recommended Operating Conditions

SI4734/35-B20 specifications

Silicon Laboratories SI4734/35-B20 is an advanced, highly integrated broadcast radio receiver designed for various consumer applications. Hailed for its compactness and versatility, the SI4734/35-B20 offers extensive features that enable radio reception across multiple frequency bands, including AM, FM, and shortwave. It caters to the needs of manufacturers looking to incorporate reliable radio capabilities into their devices, ensuring quality sound and performance without the cumbersome designs typically associated with traditional radio receivers.

At the heart of the SI4734/35-B20 are performance-optimized technologies. One standout feature is the device's ability to support digital and analog processing simultaneously, utilizing Silicon Labs’ proprietary digital signal processing (DSP) technology. This architecture not only enhances signal clarity but also helps in mitigating noise, enabling users to experience a superior audio quality across varied environments.

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The SI4734/35-B20 is designed with a robust set of features for ease of integration into various systems. The device supports multiple programmable interfaces, including I2C, providing flexibility in communication with microcontrollers and facilitating straightforward integration into existing designs. Because of its programmable architecture, developers can customize the receiver’s capabilities according to the specific needs of their applications.

Additional features include automatic frequency control (AFC) for stability in tuning, allowing seamless transitions while listening to programs. The built-in AGC (automatic gain control) optimizes the receiver's sensitivity to ensure clear reception even in weak signal conditions.

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In conclusion, the Silicon Laboratories SI4734/35-B20 is a significant advancement in radio receiver technology, combining advanced DSP, low power consumption, and ease of integration. These attributes make it a preferred choice for engineers and manufacturers looking to deliver high-quality audio experiences across a range of consumer electronics, from radios to multifunctional smart devices.