ES2838 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – V.90/V.92 PCI HSP Modem Product Brief

ESS Technology, Inc.
ES2838
V.90/V.92 PCI HSP Modem
Product Brief
DESCRIPTION
The ES2838 is a high-performance, single-chip, host-based
modem solution that delivers high connectivity and throughput
without the need for a dedicated DSP. With the addition of an
external transformer DAA, the ES2838 TeleDrive® modem
chip provides a very low-cost modem solution for add-in cards,
desktops, and notebooks.
The ES2838 modem is capable of send/receive data and fax and
supports telephone answering machine (TAM), and is capable
data/fax/voice call discrimination. With its built-in ACPI and
D3_cold wake-on-ring support, the ES2838 is an ideal modem
solution for notebooks and battery-operated devices.
The ES2838 includes a PCI bus interface and a codec. It also
includes ADC and DAC conversion of modem/voice signal data
and provide the interface and control logic needed to transfer
data between its serial I/O terminals and the PCI interface. The
ES2838 ADC and DAC operate synchronously so that data
reception at the ADC channel and data transmission from the
DAC channel occur during the same time interval.
The ES2838 modem solution meets all the requirements
Microsoft WHQL certification, as well as V.250, V.251, and V.253
commands.
The ES2838 is available in a 100-pin low-profile quad flat pack
(LQFP) package.
FEATURES
• V.90/V.92 analog data/fax/TAM modem
• Data mode capabilities:
—– V.90/V.92: 56 kbps
—– ITU-T V.34: 33.6 kbps and fallbacks
• Fax mode capabilities:
—– ITU-T V.17, V.29, V.27ter, and V.21ch2
—– Group 3 (TIA/EIA-578 Class 1 and Class 2)
• Requires minimum 166-MHz Pentium with MMX technology
• PC99/PC2001-compliant with support for V.250, V.251, and
V.253 commands
• V.80 (H.324 software-stack -compatible)
• Buzzer generator feature generates oscillation on handshaking
• Caller ID
• Data/fax/voice call discrimination
• Worldwide homologation
• Compliance with ACPI 1.0 and PCI Power Management
Interface 1.0, supporting the D3_cold wake-on-ring
• 16-bit ADC and DAC with built-in anti-aliasing and
reconstruction filters
• Separate analog (5V) and digital (3.3V with 5V-tolerant input
pads) power supplies
• Internal PLL requiring a lower-frequency crystal for 18.816-MHz
input
• EEPROM interface for subsystem vendor ID
• Supports Microsoft Windows™ Unimodem V and TAPI
specifications
• Supports Microsoft Windows 98/SE/ME/2000
• Supports Microsoft Windows NT 4.0
SYSTEM BLOCK DIAGRAM
Figure 1 shows the ES2838 system block diagram.
MINI-PCI
OR
PCI BUS
ESS Technology, Inc.
ES2838
V.90 HSP MODEM
TRANSFORMER
DAA
PHONE
LINE
SERIAL EEPROM
Figure 1 ES2838 System Block Diagram
SAM0316-041101
1