Position: Home > DataSheet > Index H > HT8 Series > HT8970, HT9011, HT9020B

Low Cost Custom Prototype PCB Manufacturer

HT8970, HT9011, HT9020B

Table of contents:
Info of HT8970
Info of HT9011
Info of HT9020B

HT8970, HT9011, HT9020B Selling Leads, Datasheet

MFG:HOLTEK Package Cooled:05+ D/C:10000

HT8970, HT9011, HT9020B Datasheet download

Five Points

Part Number: HT8970

MFG: HOLTEK

Package Cooled: 05+

D/C: 10000

Attentive hint

Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.

How to buy ?

How long will receive a response.

Top Sellers:

TOP

HT8970 General Description

The HT8970 is an echo/surround effect processor. It is designed for various audio systems including karaoke, television, sound equipments, etc. The chip consists of a built-in pre-amplifier, VCO or Voltage Control OSC, 20Kb SRAM, A/D and D/A converters as well as delay time control logic.

Its built-in 20Kb SRAM can generate delay time effect and can control the delay time value through the external VCO resistor.

The VCO circuit can reduce external components and make it easy to adjust the delay time.

HT8970 Maximum Ratings

Supply Voltage...............................-0.3V to 6V
Input Voltage ...............V_SS-0.3V to V_DD+0.3V
Storage Temperature............... -50 to 125
Operating Temperature ..............-20 to 70

Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute MaximumRatings " may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT8970 Features

` Operating voltage: 4.5V~5.5V
` ADM algorithm
` Low noise
- Echo mode:-85dB
- Surround mode:-90dB
` Low distortion rate
- Echo mode: 1%
- Surround mode: 0.2%
` Built-in 20Kb SRAM
` Automatic reset function
` Package type: 16-pin DIP/SOP

HT8970 Typical Application

· Television
· Karaoke systems
· Video disc player
· Sound equipments

HT8970 Connection Diagram

HT9011 General Description

The HT9011 is designed for FM communication system devices. It combines a paging system, mixer, IF limiter, Quadrature detector, operation amplifier, comparator and more. The HT9011 could provide the customer's PAGER system with total solution along with Holtek's POCSAG Pager Controller series products.

HT9011 Maximum Ratings

Power Supply Voltage............V_CC-0.3V to 4.0V
Power Dissipation ...............................730mW
Operating Temperature range....... .0 to 45
Storage Temperature...............-55 to 150

Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute MaximumRatings " may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT9011 Features

· Operating voltage: 1.1V~3.5V
· Constant power supply voltage can be generated by externally adding a transistor: V_REG=1.0V typ.
· Alarm function sensitivity: V_ALM=1.1V typ.
· Low current consumption: I_CCQ=1.1mA typ.
· Built-in 2nd stage mixer for double conversion method
· Mixer operating frequency: 10MHz~50MHz
· Built-in low-pass filter and waveform shaping circuit enable the extraction of FSK signals from voice signals
· Built-in battery-saving function for longer battery life time
· High transmission rate: 1200 bps
· 20-pin SSOP package (0.65mm Pitch)

HT9011 Connection Diagram

HT9020B General Description

The HT9020B call progress tone detector is a telecom peripheral for Auto-dialing system use.

Switched capacitors technology is implemented into the chip to get good performance characteristics of band pass filter in the range of 305 to 640Hz call progress tone which is dual tone multi-frequency signal.

When it detected CPT signal then it generates relative envelopes for external microcontroller decision to finish different kinds of CPT signal detection such as dial tone, busy tone, ring-back tone and reorder tone.

HT9020B Maximum Ratings

Supply Voltage.............................V_SS-0.3V to V_DD+6V
Input Voltage .......................... V_SS-0.3V to V_DD+0.3V
Storage Temperature ...........................-55to 150
Operating Temperature .........................-20 to 75
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT9020B Features

· Operating voltage: 2.5V~5.5V
· Low power consumption
· Low cost 32768Hz crystal
· CPT Band: 305~640Hz detection
· Good performance:
·8 ~ -39 dBm at V_DD=2.5V 0 ~ -27 dBm at V_DD=5V
· 8-pin DIP package

HT9020B Connection Diagram

Hotspot Suppliers Product

Product List A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

MT58L64L18CT-10

Price: 4-6 USD

MT58L64L18CT-10 TQFP100
DL-7140-211M

Price: 5-6.5 USD

DL-7140-211M laser tube
74LVC74APG

Price: 4-5 USD

74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2

Price: 6.5-8 USD

CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX

Price: 0.284-0.286 USD

PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2

Price: 1-2 USD

IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB

Price: 1-2 USD

a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1

Price: 0.124-0.2 USD

PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L

Price: 0.177-0.178 USD

RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A

Price: 0.053-0.055 USD

STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013

Price: 1.45-1.5 USD

STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B

Price: 0.073-0.075 USD

SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components